The owner came up this weekend, and while here he mentioned something about wanting to swap to 5 lug bolt pattern later on for a wider selection of wheels. So I mentioned that I happened to have a Toyota axle and front suspension in my shed. So now its a 5-lug truck.
And I made a crossmember to go behind the cab. Its 1/8" plate, dimpled 1" and 1.5" holes, with 1/4" top and bottom, internally and externally welded.