Found my exhaust leak :-(, Broken ear weld - now what? Options

[ThinAir]

I found the exhaust leak on #4. I expected to find that I just needed to tighten things up, but no - that would be too easy!

The welds on one of the "ears" that goes around the exhaust stud has started to tear loose and it took some of the exhaust pipe with it. Now I've got two small holes in the pipe where the welds used to be. (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif) These are stainless steel heat exchangers.

My temporary fix for now was to fill the holes as best I could with some copper impregnated hi-temp RTV that I use for exhaust gaskets to make sure I don't get a leak. I'm letting it cure overnight before restarting the engine. It can't be any worse than it was.

The question I've got is about fixing it when the time comes (hopefully winter). I'm sure I can find a welder who knows how to work with this stuff, but I'm wondering about the size and alignment of the ears. These have got to be the hardest HEs to attach to the heads that I've ever dealt with. It takes all kinds of finessing to get them onto the studs and I'm always certain I'm gonna scrape the threads right off the studs.

I don't think I can expect any old muffler shop to make these right. Can anyone point me to a source that I can ship to for repairs that understands 914s and can make them right?