Gunsmithing Who still does parkarizing

Retro Arms Works did the (re)parkerizing for my retro AR; if it's only a single plate they might be a good option. Got my rifle sent to him, completed, and back in my hands in about a week, so you oughta have your part done in a couple days.
 
I know you guys say do it your self. I think I can have someone do it for less than the 50 bucks to by all the stuff. I appreciate it and have reached out. I don't want to buy the stuff for literally a 2x2 inch square plate.