Bill--You want space in the back and 600-650s useful? Check out the Wagbond at Wagaero.com They will manufacture--maybe you will have to shop around for the covering and engine.
I'm building one, but I don't reccommend that if you want to get in the air soon. Jon
Do you know one already built that is for sale, Jon?
Bill Grants Pass, Oregon
Not at the moment. They do come up for sale once in a while. The guy at Wagaero who knows everything and everyone doing these projects is Tom O'Neil. Very friendly. I'm on a Yahoo account, I think its called "Wagbuilders" and there might be someone there who knows. I'll post an inquiry and see if there is a responce. If you can register there you can follow up as well. Jon