I think by the time your done you will end up like me without a donor. I have gone bmw diff and they come with the same 108mm six bolt flange as the cossie drive shaft so then you end up with the cossie rear hubs+shafts with the vented disc. Then you move to the front and realise after a read up the hubs are none to clever so I ended up with fd rx7 hubs which fit a treat and give you 300mm vented discs and a huge ali 4pot caliper. Then you look at your engine which aint a lightweight and wonder how your gonna steer the thing with a quick rack so you end up with a corsa leccy steering colomn. And it goes on and on. The single donor is great as an integrated package and works well if thats what you want, but thats not everyone
Bob
I am keeping the chassis book spec but 2mm box and all the suspension/ shock mounts as per book. Then if all my mods are a cockup I can back track. It will only be wishbones that are altered.