I like the 383 stroker idea the most. With the cash that you save, you could buy new heads, and then raid the junkyard for everything else. I'd suggest looking for a beat up 351 lightning for the computer and stuff. Maybe you can find one that's been wrecked. That would even give you the benefits of MAF. As far as I know, 351 lightnings all had the E4OD trannies, so you should be safe.