I've got some clecos, but haven't got to where I could use them yet. Another option is self-drilling sheet metal screws. They do the same thing as a cleco, but in one operation. I will likely try that as well. Hex head screws and a nut driver in a drill motor.
You bet I'm interested.

I'll be going near there next spring and may stop by. Looks like an awesome yard.
Thanks for the link. I've got him spotted on my trip map.

Another good resource for "learnin' up" on body work and welding is any of MPandC's posts here in the Paint and Body Shop forum. Robert is a metal forming artist. He also has some fantastic threads on the Garage Journal Board, including this
MEGA THREAD. Put on a couple pots of coffee and spend some time there.