I have an AWESOME machinist/fabricator down in this side of town. He's done full tube frame swaps, bag setups, Exo Cages, and has even machined custom pieces for guns for me.
PM me if you want his info.
JITB - this is what you need. A fabricator. Don't limit to lowrider shops - there are only a couple left. Race shops could do this work as well.
"Racing is life. Anything before or after is just waiting." - Steve McQueen