I recently scored a 1995 850 GLT in perfect condition for 1700 bucks- interior is a 9/10, exterior is a solid 8.5/10. 
My only problem with the car is that it's incredibly slow. I've looked up NA to turbo swaps and found out within 5 minutes of reading I might as well sell the car and buy a turboed 850. 
Has anyone modified an 850 without a turbo? I'm looking to do a cheap setup and don't know where to start.