Yes, I verified directly with Roadmaster that the Exact Center Steering Stabilizer # RM63RR you referenced will fit and work perfectly on your 2022 Winnebago Sunstar 29V Motorhome.
It will simply mount between the steering mechanism and chassis to create a tight connection for drastic reduction in wandering and quick corrections of oversteering to make your trips much more enjoyable. view full answer...
If you wanted to just replace the vent lid I'd need to see a picture of the old damaged lid and/or the hinge of the assembly to see if we have anything for it. Otherwise a standard RV roof vent could fit what you have but at worst you may have to slightly open up the hole. Standard roof vents like the Ventline Ventadome part # V2092SP-25 require a 14 inch by 14 inch rough cut square hole so you may just have to open up the hole a bit. view full answer...