Okay, now that we are seeing what is going on, here is what I would do; If it were mine and with the tools I currently have available to me.
I would strip it down and start with the smaller parts that have paint on them.
Gas tube(w/HG and rear ferrule removed), Rear Ferrule, Bolt carrier, Receiver cover, (Disassembled FCG)Trigger housing, Trigger, Safety, Bayonet, Magazine, Rear sight leaf(may be easier to replace the slides than trying to clean and re-blue them), front sight post and seat barrel.
Each part would get wire wheeled to remove paint then cleaned off with Brake Kleen. The bolt carrier and bayonet would get oiled and left raw as when original or polished and oiled depending on what I thought looks correct to the year and arsenal. the other parts I would re-blue using Birchwood Casey Super Blue.
The barreled receiver would potentially get the same treatment, but if I couldn't get into the crevasses well enough I would probably send it off to get blasted. Then bring it back to finish with the cleaning and re-blue process.(making sure to clean the bore and chamber as well as checking the muzzle/crown for burrs during that time)
Once all the parts are be-blued to my liking and oiled up, reassemble and take it out for a test drive. If you are not comfortable doing all that or not equipped you could take it to a gunsmith. I imagine it would be $200-$300 to have them do it depending on if you stripped it down and reassembled it yourself or not.
As for the Stock, same as what has been mentioned before, take all the hardware off then strip and refinish. That's about your only option on that.