170 tips for a budget!

So, I found a 64 Valiant Base that was suppose to be a working Super 225. Now I did not know the difference at the time!! So, it did turn out to be a 170. Not working! I found a bent pushrod so I pulled the head for rebuild. Several broken bolts, but I hope all will be repairable. I do not have much budget to work with, but want the best bang for the buck. Motor has 66k on it and I have all new brakes and fuel tank, lines & pump. I figure to send the head to the machine shop for the rebuild. Would having it milled help? How much? What should I know before turning these youngsters loose?
Would I benefit from a two barrel intake? Exhaust?? Cam, lifters?
Sad part is I have a useable 318 with throttle body injection out of a van. No transmission. Not sure I can afford the transmission and parts to make the 318 a workable project.
All positive advice appreciated!
Why not slide over to Slant6.org and talk to the master of all slant6 Doug Dutra he has even written a book on the topic.

Brian