Not only might I be interested in a bumper, but I have a welder that I have been storing in my garage (an old 220v arc welder) for a good long time.
I don't think either of us has even used it since the last time we built a motorcycle frame... 4 or 5 years I am guessing.
I can talk with him and see what he would want for it.
Best part is, if it all works out, I am only a bit over an hours drive away down in Kenosha.