Not to put a dampner on the idea, but I also considered something like that for a specific model only, and it is just too hard. Too many options, too many buget differences, too many different opinions etc.
I'd suggest that do what you want to do, keep a good record of all of the bits etc and let people know about it.
It is too hard to make a 'generic' kit/s to suit. But feel free to try
Cheers
Michael B
PS Look at what Ed and I are doing. At least we are using the same disc and hub, but there the similarity ends - calipers, mags are different and make a HUGE difference