Spitfire PRU Units 681 Squadron? Far East

The photo recon units including 681 squadron on the far east, flying to DumDum, Imphal, Chittagong. Anyone have any more info regarding number of “Ops” a PRU pilot could fly? Any pictures of 681 Spitfires? how many “gongs” were given out to PRU pilots? Doing some research for a display at a local museum, a local deceased RCAF veteran attached to RAF 681 flew 72 sorties/flights any extra help would be appreciated, cheers Darrell