fattie,
the intake and carb offa '65 or '66 should interchange without worry.
Also! PMD made a change to the front steering design mid-year. What is your Cat's VIN? I have a list of the breakpoints by assembly plant to determine whether yours is the early or late design.
finally, ask the guy with that '62 Star Chief if is for sale to let you know (and then please let me know)!