possible engine for my Dart

I found a guy that has a 340 for sale, I would like to get some opinions please....

The engine came out of a wrecked Cuda. It has the numbers cast into the side of the block 2780930-340-3

It was a "runner" obviously, before the crash. The seller agrees to allowing me to return it if it doesnt check out by my mechanic. He wants $1,600 for it.

If I can get by with, say just new main and rod bearings, (seems like that would be prudent to do) what else should I expect to possibly run into? Maybe a cylinder hone?

It has X heads on it too, with the 2.02 valves. He will let me pick which intake I prefer, the stock one or a Edelbrock RPM Performer. He also has a Holley 600 dual feed carb to go with it.

I know some of you will say "rebuild it" before installing it, but it may not be necessary, right? I AM on a budget here!

What thinks you?