I don't think you will find any. The only reason for a dome is to use it for in-motion and I don't think that dish is designed to make moment-to-moment adjustments needed for in-motion operation. For normal operation they are built to take all the weather that you will encounter when parked.
It would be interesting to know why you think you need a dome for that dish.
2003 Beaver Patriot
2014 Honda CRV Toad