I've for a New Mexico 77 pinto wagon squirreled away. It has windows, but I have the cruisin' wagon panels and portals too :)

a turbo swap could be done a few ways. Far from detailed, but you can go to a turbo EEC, distributor, and VAM, you can actually keep dual plug with a turbo EEC as well. The better option is go to a stand alone, but then you are doing all the tuning. In the end you need a forged short block under it all. With your V8 swap skills, I think that's a better route. Lots of little issues with turbo in those things (heater box). Unless you have a chunk of the parts, I'm not sure it's a good path any more.