I got the carpet from German Auto tops. I have also ordered a new soft top which is my next project.
The carpet fit very well with only two areas needing to be trimmed. small trimming on carpet glued to the sills and a little on the back wall on either side. they cut it a little extra there but it is easily trimed and tucked into the lip ontop by the soft top cover. I used contact adhesive. Some Landu top adhesive (i had left over from doing the dash) but after that finished I used the Weldwood contact cement that is the non drip gel formula but the regular one will also work. it is water resistant and high temp. I applied it with a cheap brush you can get from lowes or home depot. the cheap throw away ones. One tip is to keep the brushes after you are done or tired of working the carpet in a tin can sealed (like a paint can) so you don't have to throw them out and can use later.
Some tips I found useful.
1. the hard part of this is to remove the old carpet where it is glued down. wear gloves else you will get carpet burn as you pull it off. it came off easily on the back wall but the shelfs took some days to remove. I used some pliers to pull at the stubborn sports. the carpet will in some places unravel. break the task up over a few days if you like. Remove all of it before installing any new carpet as it will generate dust and you don't want to make your new carpet dusty.
2. take pictures of how your existing carpet joins at the joins so you can re create it to look close to how it was done. But for this carpet there were slight differences like the way on the cross member behand the seats goes. there is a middle join with two vinyl edging parts the butt join. on my original one carpet over lapped the other. Its a minor detail but i think the butt join looks nice.
3. Any holes such as seat belt mounts etc make sure you take measurements so you can find them. its hard to find after you glue the carpet in.
4. I did not glue down the carpet over the transmission housing so I can always remove it later. I did put extra sound deadening around it and padded it fatter so the carpet lays down relatively flat over the tunnel. I want to be able to remove if the access panels for the gear box need to be accessed for future servicing.
5. I used Siless 80 mil (2mm) sound deadening ordered from amazon / insulation
https://www.amazon.com/dp/B07BLSP8JV?psc=1&ref=ppx_yo2ov_dt_b_product_details. it worked great and self sticks and forms around curves. I used it on the floor pan areas and tunnel. Use it wherever you see fit. there are other more expensive brands like dyna matt which I think will work fine but i loved this stuff. wear gloves so you don't cut yourself on the foil. you can do multiple layers if you want. I did one layer and in a few places if I wanted to pad out a bit I did two. I did this on the tunnel so the tunnel carpet would lay down better.
6. Do not glue down the floor matts front or rear. I see no need to do so and if you ever need to replace you can order and replace easily.
7. after installing the sound deadening. You can then mock up the pieces so you know where they will all fit. pay attention to the areas that will butt join such as the parcel shelf and where the side sills meet at the back of the cross members. get these joins fit nice first then work away from that. you want these to look perfect as possible.
8. I started with installing the cross members strips first make sure the join in the middle is centered and the ends will light up with the join on rocker carpet pieces you should be able to adjust a bit here and there such that they all line up at the butt joints where the piping / vinyl is on the carpet. on the rockers just glue those small sections first and then the cross members. glue top part of the carpet on the cross sections first then the bottom section. and slowly press down . Apply glue in smaller sections at a time. Don't try and glue a complete panel in one go. it will be a pain. do it halves or quarters. (remember to apply the contact cement to both carpet and body) Let it flash off so it is tacky.
9. for the back wall use some clamps to hold the carpet in the middle in place and have it tucked into the lip of the soft top compartment top edge. then glue the bottom middle about half way and foot each side. this will basically set the carpet where it needs to be so you don't need to trim the top. back section. any slack will be on the bottom end where it will be hidden below the shelf panels.
10. For the parcel shelfs install it with the shelfs installed in the car. Glue the top section down first and make sure the piping butt together nicely even if it over hangs the wood shelves a bit. this carpet set seemed to be that the shelf panels were slightly to big but they will fit very nice and the trick is to get the middle right and the back and sides will slightly go up the wall and when press it around it will look nice.
Hope that helps.
Ill add a few more pics for some details.
