I have a '98 Wave with the old-style rudder castings. I also have a set of EZ-Loc rudders with the plastic castings and the longer crossbar. I want to be able to swap back and forth between the old style castings and the EZ-Loc system. Is anyone else doing this successfully?

The old-style pintles are too short and I see there's a new part number for the EZ Loc pintles. If I change to the new pintles:
1) will they match the transom bolt holes exactly?
2) Will they be the right distance vertically or will I have to re-drill?
3) Can I use the old style castings on the new style pintles?

The set of 4 costs about $100 from the dealer! Does anyone have an extra set of the longer EZ Loc pintles they want to sell cheap?