Forum rules state: Posts selling personal items are cautiously permitted. PUX (HYX) encourages the use of the classified ads section to sell personal items since most posts will drop below the first few pages in a short time. At this time there is a free option for classified ads to help encourage their use.
Please feel free to use the Classified area (see link in Oz and Us reply above) to post your Roo for sale.
On a side note, I had the same trailer (2008), one of the nicest HTT floor plans out there.....good luck with its sale