Will the seats (front & rear from a 1963 musketeer fit in a 1967 A2324 Super III?

I am about to upgrade my avionics to 2 KX-155 NavComs, King KLN94 IFR GPS, Garmin 340 etc. and am looking for a Avionic tecnician here in Florida or in the southeast that does good work at a reasonable price. I would appreciate any recomendations.

Thanks in advance