For that money I can get you 4.5 tops shipped....
lol I second that, and if you want painted fibreglass I can get you 2.5 of them , don't know what you,d do with the half one though !
If it bolts on its removable. Welded on would be nonremoveable. My roof bolts to the frame and the roll bars behind the seats. But it's not considered a roll bar by the manufacturer. Liability issues disclaimer
Does it have a metal subframe or is it just a hunk of fiberglass
Having a little trouble with that analogy @Bigdog , many if not most of the structurally required permanent parts on the slingshot and many other vehicles are bolted on. Are the wheels not considered a permanently required part of the slingshot required to be bolted on in order to operate ? I think if you check it out , removable means, removable quickly and easily at the operators discretion by himself on a daily basis ,as it is only an option and not required for normal operation. A semi structural component like a RIGID roof that requires two persons to lift on and bolt in place, with tools an operator is not required to carry with him for the normal operation of the Slingshot, is hardly a removable option on a regular basis. Just my opinion .