Some iconic, at least in the context of Jeff's career, guitars on sale here:
https://www.christies.com/en/events/jeff-beck-the-guitar-collection/what-is-on#auction
To me the single most desirable one is Lot 7, the '54 Les Paul refinished and retrofitted with humbuckers.
https://www.christies.com/en/lot/lot-6520001
Sadly the white Strat from the cover of
Wired, a gift from John McLaughlin, isn't available. It was stolen on tour many years ago.