positioning

The intro story: I'm thinking of buying a Corvette Bubinga as a backup for my Thumb BO. As far as I can see from specs, they're close up to a point (same neck wood, pickups, body wood of the same family, both BOs); however, I know they don't sound alike...thus, the question: how about a 'Vette...

Is it possible (or affordable) to have the same pickup positioning on a NT5 as on a NT4? I did a search but got 833 results, so I didn't exactly shift through them all. Anyone know the rough upcharge?