I agree with the advice about not refinishing the 72 - you would surely decrease the saleability! It seems that the more beat up they look the better.
I can understand why these old Fenders are so desirable - I think there is something hard to define about them that makes them so special. Even vintage Japanese Squires of certain age are becoming highly sought after, hell, even old Tokai P&J basses are sought after.
It makes you wonder - Will Mex built models be in demand in 30-40 years?? Im serious!
For me the Fender bass is the definitive passive bass - Leo Fender got it right first time and set the industry standard even until this day. Plug them in and play them night after night after night, take them around the world 10 times - the sound is just there, they never let you down. Simplicity in design - uncomplicated in structure...wonderful.
Vintage Alembics are the same for me - the definitive active bass. I love the older models much better than the new ones too. Some of the 70's models were, to me, out of this world. I can never understand why folks would pay huge sums for a new Alembic when there are so many classic models on the market for a fraction of the price - but thats just me. I like a bass that has lived, wood matured and has been played for thousands of hours.
With that in mind I would never carry out any unecessary restoration on an old Alembic OR an old Fender!
John.