Cosmetics is a huge market in games, and a really good way to make money. Charge 10$ for a recolor of a 80 uni set and people will buy it. Cosmetics add variety to the game, not just the same sets making everyone look the same.
If a modder can make recolors of sets to change client side, then I'm sure the devs could provide the GMs with the tools to do the same, hell if you take 2-3 hours to make a recolor and sell 20 of them for 10$ in a month, Thats an additional 200$ a month for T3fun.
I'd pay more than 10 bucks for a purple 80 uni set *winkwink*
Another way T3fun could make money is by changing the scam box mechanics, we already saw a bit of this with the zereka's safe event, but another MMO I play made lucky boxes drop from mobs/dungeons etc, and updated the box every now and then to have new cool stuff. BUT, these boxes require a key from the cash shop to open, which are also tradable, and all the boxes use the same key.
This kind of lucky box system is more encouraging for players to buy keys, as they already have the box.
Or to increase sales on the lucky shop, add a link to the lucky shop in the In-game cash shop. This would make newer players more aware that it exists.
I also agree on making Purifying ores cheaper, as a pally it costs $24 to unskin my set, which I want to do, but I cant justify spending $24 to remove the skin... I would happily pay $6 to unskin it and pay $10 for a nice recolored uni set, Then 2 months later id see a new cool skin and do it again!