A common option is to buy another motor, or a truck to get a motor. For example, I built my Bronco from a $600 tree-crushed F-350. I put $400 into the trans, and that was about it. My IDI converted Bronco was done for about $1000. Two years later, I'm still driving it, and it hasn't needed a thing. I have no idea how many miles are on the donor engine. Probably a lot. Compared to a 10K Cummins conversion, I'd say that extra 9 grand buys a lot more testosterone than a 5.9 does. Took me less time to put the truck together than it did to get the paper work done for Penn DOT. If you can swap engines, and don't mind doing it when one wears out or gets too expensive to run, you can go the cheap route just as easy, and avoid the buyers remorce issue like Towcat and Exiekiel had.