I do for 600. I can get you pictures if you'd like. I'll give you the floor with it. Its just plywood with a thin 1/2 inch foam on top covered with outdoor carpet. I live in Florida so if it needs to be shipped you'll have to pay for shipping.
650 for a steel I have an aluminium I would be willing to go 55o if seriously interested at sullivans an aluminium is 800 after freight and that doesn't include a floor. I live in Central Florida where are you located.