Looks like a fairly tidy truck apart from the windows.
With such a bare start vehicle I'd be tempted to find some sort of box van body to make a camper. You could make it so it could mount to a flatbed and lift off on some sort of prop arrangement. That way on off road events you could take it to the site with all your kit in the body, then drive out from under it and go and play and still have a nice home to return to in the evening!
A bit adventurous perhaps? But it's something I've considered doing to mine. Check out the pictures of U900 that belongs to Moose and Villager... They've converted a Hagglund back end to mount on their spider frame. It looks amazing!