If a replacement tank is only $150, that is by far better. you will "mess" around with that tank, they will mess around with it and you will never know if all leaks are fixed and if they just coated over some rust/varnish. Subtract what they will charge from $150, that's your decision number. Three different vendor websites indicate 30 Ohm up thru 66. One site says ...."and some 67". If you buy one for a 1966 and it does not work, they will take it back because you did nothing wrong as long as gauge is original or equiv.
