I tried to be a good boy and do it local (anchorage) with the shop recommended in some threads I found on Alaska Outdoors Forum by others, and by Wild West. Never again. It was so screwed up I had to have someone make a decal to cover the magwell that was ruined -it still showed under Cerakoting. Etched and not engraved, edges were all chipped, and it was HUGE lettering unlike what I wanted/asked for. And still raw aluminum colored, not blackened. I then sent mine to Ident online and could NOT be happier - plus they had more location options, like what I used, under the trigger guard.
And... from what I learned... get it engraved FIRST, before submitting paperwork. That way if it gets screwed up like mine was, you can use a different lower for your tax stamp. Once it's submitted, you are locked to that lower.
My next will be sent to Ident without hesitation. Just my .02$ worth.