I looked at several places online and they all wanted a firstborn child for freight.
I called over to a local metal shop after work today and they have 21 foot sticks of 1.5x1.5x.125 for $63 so I think I’ll go get a stick and make a stack of 4 tubes to span the transom. That should eliminate the need for adding tubes to keep it from collapsing. I will probably plate the center section where the motor mounts to tie it all in and give a smooth area for the motor mount.
