Price is a tricky one as apart from collectors of F1 parts the only other car they will fit is the F1, I approached OZ a few years ago and they were asking about £5,000 a set on the proviso that I bought 10 sets, they were not willing to sell them in any quantities less than that. The danger is that Magnesium degrades over time and they will need thoroughly testing with both Xray and Ultrasound I believe no doubt MSO can give you a more detailed picture.