Adrian, Janick and Dave's guitars and Steve's basses

Does anyone know who routed the body on The Kassoff Strat ('57 PartCaster) for the conversion to humbuckers? '77? I'm trying to establish a realistic timeline for "Super Strats". Ed might not have been first.
Ed most likely wasn't first.

Kossoff Strat was likely painted by Dave himself. Who did the route is a mistery.