Although the spare tire racks that bolt on to the trailer frame rails are cheap and easy to get the spare off, I don't like the looks of them. I want to mount my spare under the bow, in between the frame rails. I was thinking of having a 1/4" thick x 2" wide flat strap welded across the underside of the frame rails and then weld another strap in the center of that going forward, kind of making a tee to support the tire.

There is a local welding shop that could do it for me, but I'm worried about melting the wires running inside the frame rails to the lights. Any ideas to prevent this?