Finding a RW tester to give you RWC when you have a defect notice on your car would be a big ask. I know there are testers out there that do dodgy RWC but in most cases they do it for change over so there is less chance of being busted. If by some chance you found someone to give you a dodgy RWC the main problem will still be there( THE HOLE ) . And as soon as this cop spots that white 34 he will say to himself mmm.. I will see if he fixed the defect. Coz he will..
And he will pop the bonnet and say the hole is still there . And the owner will say i have a RWC and the cop will say COOL and here is another Defect notice.And your back to square 1 again and the tester will loose his licence so ya cant go see him again.
I would pull off the cooler fix the hole so it looks like new . Then pick up a different cooler . So this problem will be finished with.
Good luck.
Cheers...