wret, I see what you mean. Here are some pictures, one of the original finished model, and one, a quick mock up I did to start brainstorming ideas...
indian22, my plans are/were this: removal of pre-existing motor mounts. Add a lower straddle bar, (see mock up). I would love to drop the top tube down at an angle, like in the mock up, but I don't think this will happen. I would like to drop the seat as low as possible, with the additional fabrication of seat braces (like the original BTR's)
Engine wise, I'd like to add a 4 stroke, maybe a Honda GHX50, or Harbor freight 79cc.
The other option, was to make it BTR "inspired". Do what I can with what I have...... But a must is the low slung seat, and adding the lower straddle bar.
Any other ideas are MORE than welcome! Thanks everyone!
I cannot provide dimensions, because I am currently in Spain, and the frames are back home in NC