Hi, Larry,
Thanks. I think you're right. I'm being a bit of a big girl about the whole thing. The only reason, though, that I'm being slightly cautious is because I have to drill into the car. I don't have the calipers at present, and so can't exactly (or even not-exactly) work out what brake line goes where, or where the flexible hoses will reach. Hence the concern. I think if I can get the calipers over here soon, it'll be easier to envisage.
I'll persevere working off the photos I've got. I should be able to figure it out. Worst case is that I need to make a new brake line from scratch, I suppose.
The biggest puzzle, for today at leaest, is the order of assembly for the diff hanger/ strut/support, call it what you will. Having spent many, many hours searching the site, I cannot find any posts that deal with this specific issue, so in order to try for an answer from someone who knows, and then help others in the future, I'm going to break that out into a different post.
A good day, today, otherwise. Managed to install my new brake master cylinder. A note for anyone else doing this for either a 230 or 250 before the big changes: you will need the repair kit, which contains a rubber grommet into which the back 'pipe' of the reservoir presses, and the new O ring for the main connection between the reservoir and the master cylinder. It also contains a new hollow screw and spring washer that secures the thing to the MC. The rubber grommet for the back part is slightly too large to go into the MC. I had to trim about 1mm from the bottom of the grommet and it went in like a dream. I found a post last night where a fellow member had to do the same thing back in 04. (He thought he had the wrong parts; he ended up taking a sliver off and it worked fine for him, too. It's necessary to seat the lip of the grommet into the rear housing on the MC and then press the reservoir into the MC. There's also an O ring that goes on the MC where it joins the booster, but that comes with the MC). I got an ATE one from MB at around euros145 odd before tax.
James