Hey Scoot, its the same old story... if you havn't done a couple of these before then there is quite a bit of sitting back wondering what to do next. You could charge in like a bull in a tea shop but if you end up damaging anything then you will be out of pocket. Being careful certainly sucks up the hours and at the end to the day if your not careful then the chance the job will look like crap is going to escalate.
Once the covers are off you have to carefully assess the frame, spring and horse hair pad to know what your course of action will be. If you are lucky your springs and pads are good and you are able to proceed with the refit. If your not lucky then you have to strip the frame of all the springs and refit the new ones. A couple of hours to do this.
If you have an early 230 like I do and have to change the horse hair pads then you are instantly into a world of hurt having to build up the asymmetric late model Mexican pad to the same dimensions as the factory 230 pad. To get this right you will probably need to set aside at least 3-4 hours if you have never done it before. Also add in all the running around time picking up glue, extra foam padding, new C clips to secure the leather (they dont come with the kit).
Then if you dont have headrests you also stumble on the huge gaping holes in the new mexican pads that also need to be perfectly plugged with the right foam. Back in the car off to the supply shop... again.
Then considering how much time and money everything has cost thus far, while the frame is apart you need to consider any repairs to the frame and all the chrome on it. More running around time and effort. Mine had a broken lever which I had to prep and weld. Another couple of hours.
The fitting of the covers would seem quite straight forward but getting it right again soaks times. If you want to pull them on first time and accept any creases then fill your boots, but if you want a really good finish you end up pulling, heating and stretching until they look just so.
I spent far longer than 8 hours on mine but perhaps I am a bit of a ponderer compared to other more skilled diy guys. I also have based the time on two quote I got from top auto trim shops here in Auckland. Both quoted between 8-16 hours and that wasn't including any of the chrome of frame repair.