I am wanting to start making some molds of my audi rs4 rear doors to eventually make in carbon. The drivers door is in perfect shape, but the pass. door has a very shallow indent from a door ding or the like. I am not afraid or new to doing body work as thats what I use to do for a living. My question is this. Is it better to do the body work ahead of time and get it all smooth or can I make the mold and then sand the raised area of the mold that is the reverse of the dent. I think it would be easier to block it down than to fill it up on the actual door.