As it turns out we came upon a spare bus for parts and it has an earlier 615 motor in it already. We also have a 615 motor out of a mid 70's 220 I believe. Im researching now to see which motor would pack the most punch. My biggest hurdle right now is the darn brake master cyl. I cant seem to locate a set of new seals and valves anywhere. The specialist I used for years has retired and I am now looking for a brake specialist to help me with the seal kit or I could send the dismantled cyl. to them for them to finish the build.. Any ideas? Those pics are sweet if you guys come across anymore let me know, we are looking for stuff like that all the time. Ill try to post an old pic of ours and give you guys an idea of the transformation taking place over here. Ours is rusted so bad im sure 50 of the sheet metal will be replaced when we are finished.