I would like to make a shuttle bus upfit based on this body design for the Gavril H45 but I'm not sure how to go about it. I would like the passenger door to work, perhaps the ability to open the rear luggage compartment door using triggers, the ability to add a destination sign in the space above the windscreen (where it's blanked out in the photos), and the ability to use the resulting vehicle on bus routes. The bus body would have to be joined to the cab and there should be nothing separating the passenger compartment and the cab on the inside. It appears that the wheelbase needs to be extended as well. Obviously, I don't want this to be like Russian mods so I'd like to get all the collision and stuff working properly. Problem is, I'm willing to learn how to model and undertake all the work necessary to create this mod, but I have no idea where to start. I already have Blender.