**********************************************************************************************************If it were me i would go down the ford transit route !
1) its simple and easy
2) and you have your bikes with you and were you can see them
3) no towing and much cheaper to run
4) you modify it in any way you want to suit you
5) and it is also a very handy vehicle to own in your every day life picking up furniture , garden supplies , etc etc .
just my thoughts and it just keeps things nice and simple .
I, too, keep coming back to the Transit! My roadblock is the height of the bed. It's about 24", IIRC. That doesn't sound like much, but using the ramp calculator at discountramps.com, I come out with a minimum of a 3-foot ramp required for my Honda CRF230M (wheelbase 53", clearance 9") -- that's the minimum. I freak out riding up/down a steep ramp, and I guess I could do it at home enough that I wasn't scared any more. One thing I haven't checked out is that the CRF is half the weight of the Street Twin, so I could possibly walk it up the ramp under power. It's small enough that I can walk beside it and reach the far handle bar pretty easily.
But then I think about losing my footing, slipping, the bike falls over on me out in the boonies by myself. I dunno, maybe should just go for it. I really love the idea of being just a self-enclosed unit. Not having to tow a trailer would be fantastic!
Thanks for the thoughts!