Hi, ABV,
That is quite an audacious project, like you I was after UV Recaro's but long unobtainable, so I will stick with my factory chairs.
Wish you all the success with it though, and thanks for keeping us informed.
You might remember me posting about brake piping, well soon after that I did make up a straightening tool, from steel offcuts of square section tube, and did all the brake lines (4.75mm), clutch feed pipe (6mm) in factory steel, not turned out too bad at all. took a fair bit of time, the rear axle feed's to caliper's were blooming awkward!
Also painted the gearbox and re-plated the bolts using my DIY kit, must post some pics up.