wats up e34 people!!!

lol i have a question for anyone that has owned a 1990 e34.
i found someone that is selling a 1990 e34 stick shift. can anyone give me any tips on what to look for before i buy it?
right now i own a 1993 e34 auto but i noticed that the engine is different.
any help is good help i just wanna know if its worth the buy. any major places that the car fails on?????
car info: (that i know so far)
1990 e34
180k-200k miles around that...
stick shift
the engine is a M20B25 (googled it)
cloth seats! (i was amazed)
thanx!!! and i hope i can get as much info as possible b4 i make my decision.
THANX!!