I'm till considering options for a hitch mount type rack. Just took the plunge and purchased a 1UP USA Double Heavy Duty quick rack for the Tow Vehicle. The big plus with this rack is a quick load and unload and no contact with the bike frame. I'm still leaning towards a fix like Glenn and David have mentioned in their posts.
BTW ,Glenn and David would you have any pictures showing the attachment configuration?
My train of thought is to have a receiver fastened/welded like you gents have done, then just switch the whole rack to the trillium
for trips with the camper.
I'll try to add a picture of the remaining frame at my bumper-which will likely get cut off or reinforced as per Glen and David's set up.