Originally Posted by
redshishere
As far as I know, there is no way to permanently unlock cosmetics through a save file. I am curious, though, as you say that you have done so with a save file in the past. Is it possible for you to provide this save file? I would love to check it out.
I don't think that market files are too much of a hassle too. As long as you have the market file and the Fiddler rule, it is very easy to just start Fiddler every time you open the game.
About lowering addon numbers, you can use a save file editor. If you want some more info on that, I would be happy to provide it, but I cannot be bothered unless you actually want to hear about it.