Thanks for the feedback Jim,
When we crashed, the 2" insert portion of the WD hitch was destroyed. Luckily I had our stock insert with a 2 5/16" ball on it. I disassembled what remained of the WD hitch and set the trailer tongue coupler down on the stock ball. The trailer did develop a bit of a nose down attitude, but I really had no choice but to get it off the road. I actually tied the Porsche down where it landed, right over the axles, and hit the road.
The plan was to take back roads the 30 miles back to the shop at low speed. The officer that stopped (no ticket, he could clearly see what happened) had directed us to make a turn but that turn was actually the freeway ramp so I was back on M-14 headed home. I kept it at the minimum speed for awhile and noticed that there was no porpoising or sway that I could detect. We went through several lane shifts and several episodes of driving on the paved shoulder being used as a temporary roadway. The trailer behaved flawlessly.
I believe that the trailer would be fine without the WD hitch but I've read that trailers over 5,000 lbs without WD hitches might be considered negligent in a court of law. Some insurance companies require them.
I am convinced that the original WD hitch masked the imbalanced load that I created. Everything was fine until the hitch fell apart and I lost all of the anti-sway effect of the WD hitch.
Wait 'til you see the finished product of the lounge area. I have been collecting '50s furniture and furnishings for awhile now and the bits and pieces you'll see are stuff that we've had for years.
However, I am looking for a period Bakelite radio that would be affixed to a shelf mounted underneath the outlet, in-between the windows.
Thanks for your interest.