might buy 1981 210

I am looking for a new project. A friend of mine offered to sell me a 1981 Datsun 210 for cheap. Light weight, rear drive, and ugly. PERFECT! Anyway, it has an automatic trans, and I'm not too sure what engine. Considering the lack of information I have, is a 5 speed swap out of the question. And just how fun can 80 hp possibly be?

I will be a nice project,go ahead mate.
Currently, I'm building a Datsun 310 for drift project but with very tight budget,1.5 c20 van engine, full lock rear axle(instead of an xpensive LSD). I just wanna see how's the result in next few weeks.Just started to learn how to drift,not just drive!!