I contacted them when we had a previous discussion about the poor quality of Ramco mirrors and their failing chrome finishes.

They indicated they did not have a base configuration that would conform to the Prevost curve on the body or the hole pattern. They further indicated the wiring is completely different and it would entail major changes to the switches and wiring.

Too bad because the three mirror configuration would have all the benefits of the old Velvac system and would eliminate blind spots. It would probably not corrode as fast as the Ramco mirrors either.