Calgary - where to have exhaust manifold welded?

A couple of weeks ago, I thought I had developed a leaking exhaust manifold gasket on my 1984 Euro 308 GTS QV on the return drive of a quick road trip to Winnipeg... but upon inspection tonight while preparing to replace the exhaust manifold gaskets, it now appears that the #2 header tube is cracked about half way around, within an inch of the flange! It also looks like this header has had 2 or 3 of the header tubes rewelded at least once...

I'm checking around to see what's available for a new/used replacement, but also should consider having this one re-welded. Can anyone recommend a good welder or shop for fixing this header?

Thanks,
Gordon
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Thank you, I will get the header out and follow up!

Cheers,
Gordon