gibson les paul burstbucker

Guitar pickup change at guitar center or sam ash?
i just bought a gibson burstbucker(neck) for my epiphone les paul that still has the stock pickups in there. i was wondering if anybody knew how much it would cost to wire the pickups at guitar center or sam ash and if it would be cheaper to wait and get both replaced at once?
cheaper probably?…to do both at the same time as it requires taking it apart!…which you only want to do and pay for once!…
Better Recording: Gibson Les Paul Burstbuckers