I finally got around to welding this thing up. The stand holds 2 tanks, one for a hot cleaning solution and another for boiling water since I only do rust bluing here at the house. The tanks measure 40" x 6" x 6" The double burner was made up by a buddy and runs off of propane. One I get my garage re-arranged, I'll build a rolling table for the stand to sit on.
I set of burners on under the stainless tank.
Almost forgot, 1 1/4" by 1/8" angle iron with a Lincoln 100HD and .035" fluxcore.