I have a brand new RDome for sale still in its original plastic package inside its carry bag. I ordered one while waiting for the delivery of my Rpod not realizing the dealer included one with my purchase. I paid about $700 for the rdome. However, I'm willing to sell for $400 plus shipping costs.
Note that this is for the bigger tracks, 14mm I believe. I don't think it will slide into the tracks on the older Rpods. The rdome is green and white (standard) and is the 13' version which is the largest.
I absolutely love our rdome. We have learn d to install in about 10 minutes now that my wife and I are familiar with the setup. It comes in handy during rainstorms for cooking under or just hanging out. My family of four plus collie fit in with lots of elbow room for cooking table, four chairs, etc.
If you are interested, PM me including your zip and I will get a shipping quote back to you within a day.
You can calculate the shipping yourself from Colorado 80602. Weight = 25lbs, dimensions 57"x8"x11", value $400. Here is the UPS link https://wwwapps.ups.com/ctc
I just calculated the rates for FL at $75 and Boston at $71.
Update: Happy to arrange local pick-up in the Colorado front range area.