do it on the insurance Steve, as what it will cost you in extra premuim over the next 2 years or so will be far less than even buying a new tank for your bike
weigh up the cost of ins claim, I called my company to ask what difference it makes when I had mishap with dzuz and take the excess into account, still better of with a cliam tho and means you have nice new shiney bike again!! wots insurance for if youre not gonna use it.....