Enjoy the search, the fun part is hunting for exactly the right car.
If you want a 5spd 6, highly recommend the 528, 535 and 535is up to model year 1988. Difficult to find in good condition....best of luck!
Difficult to find is right.
Not an 86 but close: http://www.carsforsale.com/used_cars_for_sale/1988_BMW_M3_202453906_1
sheeshk....thems is 'spensive~~45,000 for a over 30 year old~
Here is another 88 this is closer to stock and priced much better. : http://cgi.ebay.com/ebaymotors/BMW-M3-E30-Absolutely-Perfect-Condition-69-000-miles-NO-RESERVE-/151095693537?pt=US_Cars_Trucks&hash=item232e0150e1
Looks like your 86 is going to be a needle in the haystack. Heres a fixer: http://www.autotrader.com/cars-for-sale/vehicledetails.xhtml?zip=34957&endYear=1988&modelCode1=M3&showcaseOwnerId=564241&startYear=1986&makeCode1=BMW&searchRadius=0&mmt=%5BBMW%5BM3%5B%5D%5D%5B%5D%5D&listingId=326346827&listingIndex=2&Log=0
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