You're right - its a dogs breakfast. I would like to see a spreadsheet with the first column headed "Stagea model" e.g. S1 awd, S1 rwd, S1 260 RS, S2 awd, S2 rwd, S2 260Rs, M35 etc etc and then subsequent column headings such as Front rotors, DBA###(say three types: stock, heat treated, heat treated and slotted) Rear rotors..ditto. Front pads Bendix###, Endless### etc, Rearpads ditto, handbrake shoes ### and columns for alternative brakes e.g. R34GTT brakes, R32 GTR brakes, R33GTR brakes, R34 GTR brakes you get the picture. Then in each cell of the table : verified by 3 members, or 6 members or "will NOT fit verified by..." or "can be made to fit with inexpensive modifcations" !!
I don't know if this would need a moderator to be able to make it work but it would have to be somewhere where it wouldn't get lost and people would have to be reminded to contribute their real world (yes I've done it and it works/doesn't work) experience (not "my cousin's mechanic says it will fit") .
Does this sound too ambitious/too much work? I have read the sticky and various threads on brakes and there is some contradictory "information" and people pop up asking the same questions without necessarily getting a correct answer!!