['63GENIII]

I recently found what appears to be the evaporator and heater core housing(s) for a '64 - '66 truck / suburban and was wondering if they would fit into my '63? There are no vents or dash parts. I know that there are no places for the vents on the '63 dash so those would likely have to be fabricated. It looks like the controls also come with the deal and Im thinking there may be a way to adapt them to my deluxe control panel? The under hood and under dash housings are what interest me though. Any info, insight or ideas here would be greatly appreciated. I already have a Sanden pump on a serpentine drive from a '97 truck so that is about the only part I have covered at this point.