As long as the tyre seals then it's ok to bash it straight. There are firms that will roll a buckle from a cast ally wheel as well. Having said that, I recently needed two tyres for my trailer which had 10" Mini wheels, and that size tyre is expensive now. I got 2 wheels and tyres from the breakers for £5 each and they were from a Metro which had 12" wheels but pcd of studs is still 4". They were 'as new' being unused spare wheels.
(It's normally women who 'kerb' the wheel though?)