I called ColorRite and got it on the way. Earlier I had looked at their website and it only went back to 1986, so I quit. When I called them this morning, they fixed me up with base coat and top coat in 11 oz. cans, and with shipping it came to $80. That's what Phil means by 'not cheap'. I'll test my own $6 primer and clearcoat for compatibility. Some other website that claimed to specialize in old motorcycles said he could ship me rattle cans that I could fill and pressurize (???)or for better results, buy the paint and reducer from him for $390, and rent a gun and sprayer. I don't think so.
I'll let you know how it comes out.
I've also seen websites that have tank graphics. The GL500 has gold stripes, and of course the website didn't indicate having them. These of course are way heavier than the typical auto supply pin stripes in a roll. Have you guys ever found a source of these?