While a repair probably could be made via a specialist your LBS could recommend, trying to find a local engineering company who have the capability, it would probably / possibly be prohibitively expensive unless you can find someone that does it for a hobby or beer money (and then, could you trust the quality)
As a user of engineering fabricators, welders etc for decades, i've long since known that many simply wont do jobs 'on the cheap'. One owner of such a company told me once, there's nothing worse than someone turning up at the door asking for a one off and expecting it cheap...and worse still, cash, and he thinks he's doing YOU a favour. You have to spend time working out the best method of attack, take someone off a job to do this 'wonderful' one off, you instantly start to lose money because he should be doing something more profitable. or more important to the engineering companies customers.
If you can find someone that's going through a quiet period, they may entertain it....but decades of experience tells me they're all usually busy as a busy thing.
