I have one of my bike. It got holed on Dartmoor and the AA man with his magical stuff temp fixed it for me. I replaced it but I still have the holed one. Its an easy fix I guess as its only a wee tiny hole. So if someone needs a spare, thats an easy fix. Make me an offer as Ive no idea how much to sell it for.
Just for info I holed the radiator on my MV trying to get a second hand one of those is difficult unless you go to the states and then they are few and far between I bought some of those aluminium brazing rods. It's fixed it.
Theres a place in Feltham that fixes em. Mates got fixed there off his R1. I just bought a spare off ebay, thus this one is surplus to requirements.
