Now my plans are to build a Benroy... with a twist.
I need some way to mount this:

And I will be pulling it with this:

So I need my tongue weight to be very low.
I was thinking that maybe if I shift the axle back a little bit, that I can mount a removable rail on the rear of the teardrop. That way I can pull the rail off when I am stopped to have better access to the galley.
My bike weighs about 250/275 lbs.
Anyway, I am pretty good at building stuff. And I have a friend that's a welder and another guy who works at a 18wheeler depot. So parts are going to be easy.
With my job, I live on the boat 20 days and I am home 10. I figure I can work all day on it 8/10 days home, and have it done in 3 trips.