turbo coupe question

I'm possibly in the market for buying an 87 turbo coupe. It has 244k on the engine, and I was curious where might be the best place to buy parts to rebuild this car?

It all depends on what parts you need. There are websites that you can search for used parts or you can go to another site like Rock Auto for new mechanical parts. turbotbird.com is an organization that might be able to help you find those hard to find parts. Only you can decide if is worth spending your money on a car that old and with that amount of miles. Price out parts like a turbo and related parts before you buy it! Good luck!