I have worked in the gear/ equipment repair field, and know others who do the same. Send me a note to email@example.com.
I am Fred Beckey's pack repair guy still, though I no longer do repair as the mainstay of my profession. That is my claim to fame. Such a high water mark, and so early in my career ;)
Seriously, though, I can recommend a bunch of machines that you will need and places to get started, if you have the skills already. This work can be VERY difficult.