If you do get the chance, I would still be interested in the gauge/thickness of the material you are using. Is it the same all the way around, or a thinner metal with renforcement where needed for tow bar connects, D-rings and winch plate.
I can understand where shipping could be a problem. One way to lower the shipping is to set up an account with like FedEx and the fees do drop. Another would be to ship it in a bare metal state with out painting, this would cut down on damage claims and packing materials.
Or push comes to shove, as you cut your pieces make a template and sell the plans and templates to those who are interested and wish to have the bumper made locally.
But, as you said, lets see how the first bumper turns out. Good Luck, no pressure...but we are all watching over your shoulder......LOL
"If you have a difficult job to do....Give it to a lazy man....He'll find the easy way to do it."