Its an easy swap but a lot of work. Best to find an efi Truck and literally rape iy for all its worth. You need tank, wiring, sensors, fuel lines, EFI unit, cam, computer. Basically everything but the block, frame and body, LOL
you dont HAVE to have the cam, you can use the 22r one. but there is a slight differnce between them. for the price you would pay for a cam, you could prolly just get a proformance one for around the same cost.
I bought an 87 4wd for a parts truck. Bought primarily for the bed. It had a bad frame but everything else was good. Initial price $75. I've made roughly $900 in parts and I still have half the truck left.