That is a slick setup. I like it. Wish I had a good supply of steel, I'd like to give something like that a go.
A real Santa Maria pit would have been a 4 to 6 rod rotisserie rig, the rods would need to be about 5 feet long, and 5/8" diameter. It doesn't have to be motor driven, the real big boys of Santa Maria turn by hand. Each rod should hold two full sirloins.
So, there is the challenge.
Outstanding Build. I think I'm gonna use some of your ideas but my logo is gonna be much nicer since it'll be a Razorback Hog.