Whiteside makes the best bits according to a FWW tool review from a while back and they will also make custom bits. I have no idea what the cost or expected delivery time would be.
There is also the possibility of getting that profile made for a molding head that could be used on a table saw. Possibly Corob Cutter. Magic Molder is another one.
There is also the possibility of getting that profile made for a molding head that could be used on a table saw. Possibly Corob Cutter. Magic Molder is another one.