I have owned 2 E30's. Most recently my beloved 1988 325is that is now sold. I bought a lot of my parts (clutch kits, brakes, etc) from Pelican Parts. I've never had an issue with them, and they performed well! I think 3K is a bit high and urge you to shop around. Check on George's (MITE46) E30/S54 build-up. You'll find many E30 guys hanging out there observing from other message boards, and offering technical support.
328i ZSP/ ZPP/ ZCW - Sold
'99 DINAN 328i - Sold
'93 Honda Civic Si - Sold
'09 Audi A5 3.2 6MT
'87 Ford/Merkur Sierra XR4 Turbo