Hi,
Welcome to the Forum. May I suggest that you locate the VIN plate, which is usually found in a central location over the radiator. The first three numbers of the VIN will give you the model., and next to the heading "Motore", you will find the engine type. I would expect a 2007 vehicle to be a 250 model, but with a motorhome it could be a late registered 244 model.
While specific advice relating to the Tandy conversion may not be available, there are several forum members who are MH owners, who will be able to give non conversion specific advice.
