I would be willing to try the tape thing. Can you find the thread that shows how he did this?I don't know any motorcycle that weighs in at 1,800 lb, but you're on the mark.
Correct when necessary and don't panic. Wide front wheels and lowering springs alleviate the impact of wind, but it's a bit unavoidable that the 451s are a bit like a sail in crosswinds.
There was also a guy on here who discovered that using tape to smooth out the the ridge between the tridion cell A Pillars and the front windscreen helps dramatically.