Hi and welcome to RIBnet.
Yes, I think a 7m RIB is too small to carry a wheelhouse. More like a 9m or above I would say.
Most people over here who own a RIB IMHO do enjoy the out door life and it's very common to find that RIB owners Off road their cars, camp...Etc.
However I think there could be a demand for a Consol on a RIB that would offer a better level of protection without ruining to look of the RIB or affecting what we love about RIBs which is their openess.
So why not design your own?
I have had a thought of creating a bowrider style RIB, with a two part consol one on either side of the deck with a centre walk though. It wouldn't be too difficult to create a centre roller door type cover that would effectivly Zip both parts together making two consols into one. This would offer brilliant protection for those rough days and still providing plenty of space during the Sunny days we sometimes get. The only problem you'd then have to overcome is the roof section and this could store behind the front seats as a solid fibreglass roof that could be lifted up and locked into place.
Or buy one of These
One of Redbay's better looking craft.