Deucedeuceteg

Correct me if im wrong but the 91 integra comes with b18a right? my question is, i have a hatch in need of a motor, it has stock d15 190,000 miles and smokin! Someone is sellin a 91 integra 170,000 miles for $700, it's also smokin and they told me it might be the valves or rings that are gone. It needs body work so i know i could get it for like 400-500. I'm plannin on going turbo so is it a good idea to buy it and build the engine, instead of spending more money on a low mileage engine. I want the hatch because the integra is rusty and needs a lot more work.

What about building the d15 good or bad?
I hope i could get some ideas!!