Quotes are $40 and but can vary depending on the unit as some units require more diagnosis and disassembly time.

 
Some quotes can be free if there is a known fault with the unit.

Rhodes tunings from $ 50

Yamaha CP70 electric piano from $ 90

Wurlitzer 200a/200 electric pianos from $ 50

A valve amplifier re-valve will depend on the output tubes used eg 6L6, 5881, EL34, EL84 etc.
These output tubes do change price depending on availability.

Re-Tolex can depend on what is to be recovered. 

Rhodes piano Re-Tolex from $ 500

Fender Twin Reverb from $ 200

Fender Super Six from $ 400 

Prices may vary subject to colours chosen and type of tolex.