Well, no more pressing need for me to look for a beater truck. My brother picked up a '72 Ford F250 Ranger Camper Special 4x4 with a 390 as a sort of work truck/project and will be leaving it at my place since I have gobs of spare parking. It's pretty fun. Interior is in great shape, exterior is pretty beat, runs and drives nice but needs some idle adjustment. Doesn't like to idle when warm, so the auto-choke might just need a little tweaking.
It's in surprisingly good shape. Power steering works great, radio sounds excellent, all electrical and lights seem fine except the high beams.
It sounds great, of course. But it's got stock cast headers and a 2-barrel so there's plenty of room for easy gains.