On my Villa driver's and passenger's seats, the seat and the pedestal are both made by Villa. Villa supplied Monaco with both tall and short pedestals. Mine came with tall pedestals and I called Villa to see if they had shorter one. When I told them I had an 08 Camelot, the sent me 2 of the shorter pedestals free of charge.
Take a measurement of the existing bolt pattern and ask the new seat supplier what their bolt pattern is.
2008 Monaco Camelot 40' PDQ