I've got $4000 to spend on a truck...what can I get?

[Drogster]

My beautiful financial manager (the wife) has given me a $4000 budget that I can use towards the purchase of a new old truck.

We both like the 60-66 and the 67-72 body styles. We just want a truck that'll be fun to wrench on, great for cruizin', and may take a run or two down the 1/4 mile now and then. Probably start with a small-block, and (maybe) someday drop in a big block.

I've been shopping around on the internet, and I know I should be able to hook-up a fairly decent, running, driveable truck for that price, or less. But I can't hear the truck, can't drive it, and can't see the rust spots.

I'd prefer to spend less, because it gives me some extra $$$ to work with (start on body, etc).

What should I be able to get for under $4k (condition, body style, etc)?

Thanks!