Need advice from the early A-body gurus....

Is the car a 62 or a 60-61? they have differences in suspension & wiring-- the 62 is the precursor to the 63-66 "a" body line 60-61 were the starting points.

if that is what you are looking for -- get some quality pics & look at them carefully-- if the seller is serious -- they will not mind taking detailed pics for you.
I would ask about the heater-- unless you do not need one. those cars had the engine compartment heater & it takes up lots of space.
Since this car is modded-- check the wiring upgrades & how it was integrated into the existing harness.

As always it is your money-- choose wisely-- there are many cars to choose from , Lawrence