So Highfield provide a pdf download plan for a cradle to store your dinghy so that it is under least stress.
I’ve just knocked up one using the wood from the pallet that our solar stuff arrived on. It isn’t going to win any prizes but should be practical enough. The intention is that the cradle will fit in the van to make carrying the dinghy easier (the front section might need to be lifted a bit so that the front of the dinghy will fit between the front seats).
I’m going to add some rubber padding and if it works in the van will paint it so that it lasts a bit longer.