Ken,
The center x-member is '66 Chevy half-ton. There are more pictures in the Hi-Po forum under 'Gibbon ...'
GL I'm not quite sure how to break this to ya.
I'm the engineer in my neighorhood!

. I was ROFL as I read your post. I started out as in electrical power, then controls and now I engineer software applications.
Your spot on about the welding screens. I have a client that builds heavy truck parts and I was looking at the welding screens in their shop and then came up with the design.