[JJK78-951]

That is a very open ended question. 40K in the 993 coupe world is a bit of a stretch unless you get one that needs lots of work.

I'm a bit more confused by your question of "which one would you buy?" As in which 993 coupe? How many 993 coupes did they make? Are you looking for a year to buy? At 40K you don't really have much of a choice, you get the one you find, then deal with the issues. You may be able to find one for less but it will have problems, heck just a scan of Ebay tells me you are going to be hard pressed to find one in that price range.

I think you are SOL at $40K on a 993 coupe. Unless you find one that has title issues, wrecked etc... even then these cars are worth a ton of $$ in parts - motor and transmission alone are worth $20K++

Good Luck.
$.02
J