Check my built thread below. I think I bought my hoop from the guy that makes them on this forum. I forget his user name. Someone else should know... Same frame as yours, I used the Legendary Motorcycles seat pan which IS sold through DCC as well. It would be very easy to make your own though as well.
The hoop really won't hold a whole lot of weight even though it would be capable of it, it's more for stiffening up the frame from the other support you cut off under the oem seat.