The gold wash is no problem at all. its the etching that is a problem. That is of course if you want to polish the blade. I personally think it looks fine and would just hone it up and scrape your face with it but thats just me. If you want to redo gold wash try taking it to a jeweler. I have found several jewelers that will do this for me for a decent price but they are all local jewelers so its not like I can say "He went to Jarrod's!". They might do it though, i have just never gone. Also if you can't find anyone to do it they do sell kits to do gold plating. Its all just a matter of "is it worth it to you?".

Also a lot of jewelers have ultrasonic cleaners that will get the gunk off and still preserve the etching. It won't take care of pitting though.

Again my opinion is just hone and shave.