Adding a HD pintle?

Thanks for the photo. It's not easy finding photos of highway tractors pulling equipment trailers, but that is definitely what I'm after (at least half of it).

As for the build, well I've built a few hitches for my medium duty trucks... always overbuilt. I have a plan in mind and I'm confident I can make it more than support the max rating of the hitch. The weak point becomes the frame itself.
The downside is I expect it to weigh in the 300lb range and you know....weight.

 

Oh, I know. I think we'd all have trucks that were built like tanks, were it not for weight limits and bridge law.