I played with DIY parkerizing, and it surprisingly turned out pretty well. I parked a beat up FEG Hi-power and "half" a Garand. I used a kit from
MG34 and simply followed the directions. I "cooked" the parts in the garage over a coleman stove in a large stainless steel pot.
Metal prep is extremely important in the process, and you MUST keep oil off the prepped metal until after cooking. Otherwise your work will end up spotty. I used a beat up sand blasting cabinet and media left over from my M38A1 project to clean and remove any finish off of the parts.
I only parkerized the receiver and most small parts of the Garand because I didn't have the funds or resouces for a larger tank adn some of the small parts didn't need repark. I used electrical tape to protect the barrel from blasting and parkerizing, and I was amazed at how well it looked when I was done.
Anyway, if you are patient, can follow instructions and have a way to prep the metal, you should have no problem. I know a guy who did this on the kitchen oven and it turned out just fine. I wouldn't recommend it due to the fumes and smell (not bad mind you, but be sure to have some air flow).
Receiver was reparked...wood is a Boyd's stock. The rifle appeared to have been used as a drill rifle before I got it as wood was chipped up pretty bad, and receiver had light surface rust where it would have been regularly handled during drill. Turned out pretty good if I have to say so myself!FEG Hi Power I did at the same time.The old beast of a project that I almost sold before I finished...now I'm glad I didn't! My 1953 M38A1 jeep.