Mike,
I've seen your car in a few places, (magazine articles, sadly, not in person), and have been drooling over it for years, an inspiration to me to get off my butt and get busy on mine. With 5 Norton Commandos, a Triumph and an Aprilia, the bikes keep me pretty busy, but I've made more progress in the last 6 months than in the last decade on the Volvo! Biggest delay was full knee replacement, (crappy plastic/metal crude junk!, couldn't do squat for 2+ years!), and a house move and sad loss from a 22x40, fully insulated, heated, A/C, extremely well lit and wired garage/shop to a tiny 1 1/2 car, (barely), bare, "garage". But, garage addition phase #1, (widening, new doors, etc, completed and phase #2, 12ft. addition, big elect. upgrade, insulation, etc, etc on schedule for spring. I did a fair business restoring vintage Brit bikes in the old place including doing all of my own blasting, powdercoating and painting.
I've mentioned the project car, the one with the good body, is an '84 242DL, but the parts car, (sadly, I love that car!) is an '83 242 Turbo, so I have the bits from it, plus I have a diesel front bar and a big fat front one from a Mustang that I think can be made to work.
I have looked EVERYWHERE for the EIBACH springs, can't find any. Eibach says "no stock". Of those available, the IPD springs seem to be the best choice, but you've given me some specific numbers to shoot for. Maybe I can find some comparable in Europe; Svenska Ebay?
Doug