I would love to do a reverse trike using a GL1500 and a VW torsion beam front end had one on a 69' bug i had, sway away adjusters, that could tighten the front suspension or soften it up and could lower/raise the front end.
Front suspension was comfortable.
That beam suspension up close to the front of the GL1500 motor, tied into the motor mounts, and a short piece of frame using the swing arm, rear car tire on oem rim, brakes, from the GL1500.
Make it as short as possible, single seat, to keep it short.
I saw a guy that built a reverse trike, i wish i would have got a picture of it, and he used some VW Rear fenders on the front of the reverse trike, but turned them backwards, so that the rear of the fender faced forward.
It looked very cool, and was really old school European styling, I thought it looked real swoopy, Like a 63' Jaguar, 60's Old Corvette.
He put the Brake light/Driving light, & turn signals in the trailing/rear part of the front fender.
It had very curvacious lines, looked real sexy, the way he had it, made it look very nice.
I dont know what powered it.
It looked like it would be a lot of fun, there was a crowd looking at it at Walmart parking lot, it was attracting a lot of attention, he probably attracted a lot of attention where ever he went.
If you had the VW fenders they could hide your gas Tank, Battery, and maybe have a small storage.
Some of the Nice Cadillac deville the nice older Tail lights had driving lights, Brake light and turn signals all in one, and looked really cool, those would be nice in the rear of those fenders.