I think everyone's still dumbstruck you managed to find those chips (who did you have to hold to ransom to get them, anyway?
).
If all you need are crystals then your best bet is to find a C65 owner (you can find them on any street corner. Or alternatively try the commodore-dedicated websites) and ask him very very nicely to look on his motherboard as it'll be printed on the crystal, and you should be able to get a direct replacement from a donor machine (not a C65!) or from an electronics store.