Thanks for the advice, absolutely spot on. Disconnected the starter end of the battery cable, liberal spraying of contact cleaner, clean end of battery cable with abrasive paper, applied Copper Slip to terminal post, reconnected battery cable, did the same to the push button solenoid end of the battery cable. Sat in the car with fingers crossed, choke out, turned the ignition key and Bingo, the car started. Great relief.
Thanks again Stuart for the diagnosis. Now on to replacing the fuel pump.
This forum and its members are great.