Cheers guys, I fitted them behind the grill anyway. I'll put it in for an MOT and if it fails I will add some extra ones on the corners. I'll take them back off after the test though as they wont last 5 minutes off road. Side repeaters are already fitted and working.
I only want to drive it 10 minutes from my house up country lanes to the local pay and play days, just saves us having to rely on my mate with the trailer.
Added some wheel arches too, just got to fix a few electrics and I'll put it in for a test and see what happens.