If an owner of a Permit aircraft formed a club, a CPL could be paid for giving taildragger tuition to qualified PPLs
Not unless they already hold taildragger differences training - otherwise it is "training for issue of a licence or rating", which isn't permitted.
can the owner of the aircraft be paid for the use of the aircraft.
Not unless:
(1) It's a type approved microlight (say a Thruster T600T), or
(2) It's a single seater under 910kg MAUW.
Incidentally I know from an extremely reliable source that PFA and BMAA are trying to change this at the moment, but aren't getting very far at present.
G