I have a '54 strat and recently had it fitted with lollar blackface pups and an alembic stratoblaster...I had to make a choice as to whether to route the wood to make a battery change easily accessible or put it under the pick guard which requires removing the strings taking and off the pick guard..I chose to do the routing, ultimately it was a decision between originality vs playabilty...as to its ultimate value, I'll let my heirs worry about that..curious why you are choosing Alembic pups, seems like an entirely different sound from a vintage strat...no question that Alembic's are great pups, just interested in what sound you are looking for...good luck with your project
Tom
Tom