Thanks Chris, you pretty much said what I was going to about finding an engine.
One thought on the brakes, even if everything is perfect otherwise replace all of the steel brake lines from the master cylinder to the wheels. The old lines can look perfect on the outside, but will rust through from the inside out. With the original single resevior master cylinder, a leak any where will cause you too loose brakes. A dual resevior MC conversion would be a smart investment.