We get AR400 waterjet and laser cut, depending on thickness. Laser cut is usually cheaper that waterjet.
Just check with the vendor to see if the AR500 is heat treated, if so then waterjet to avoid ruining the temper or decarb the edge other wise have it laser cut.
Hair shears are a completely different animal than regular scissors, knives and razors. You have an 800mm convex edge to maintain along with flat and concave grinds.
Without a doubt find a professional to take it to, not work ruining a $600+ shears.
Just got of the phone with Darrin Sanders, and said he would be willing to hold classes.
You would have to contact him for pricing, as it would be tailored to each individual persons needs. Prices would include everything for making the knives, steel, pin, handle material, belts, abrasives...
Kermit said he doesn't know of anyone in LA holding class, but recommended contacting ABS for the nearest smith holding classes.
There are 2 ABS master smiths here in LA that Kermit knows.
Tim Potier in Oberlin, LA and Chris Marks in Breaux Bridge.
http://www.americanbladesmith.com
If its too badly chipped or has been sharpened too many times, the secondary bevel will need to be thinned so there isn't too much meat behind the the primary bevel (cutting edge).
There are quite a few smiths in LA, one in Broussard was on the show forged in fire.
Will ask retired ABS master smith Kermit Laurent tomorrow when I talk to him.