WTB engine block

So basically I'd love to get my hands on a 318 or up, something nearby that I can pick up and that I would be able to get cheap. I don't have a lot of money since I'm a college student and I wouldn't have any immediate plans for this engine.

What I want it for is something to put on an engine stand at my brother's garage and start building, over time, maybe a couple years even, getting parts for it whenever I can and getting it all put together into one bad *** engine, and finally dropping it into my next mopar, since I think the dart will have it's 273 forever.

Anyways, if anyone has anything just let me know.