save it up, because when the next extremely overpriced, desirable item comes out, you're gonna want to have the 30k for the "mini cute knight horse" mount.
to be more specific, the game is designed to have moneymaking extremely annoying, to increase gralat pack sales.
5k gralats isn't much, especially since prices are overall starting to increase in the game. with 2p mount prices going from like 70k to 105k, and a ton of new items/furniture pieces sprouting up with inflated prices, you'd be best just saving till like 30k-40k. if you plan on buying customs, then just add in 30k to whatever you'd normally save to. a 20k-30k reserve is always good incase a cool item comes out, and then everything you make above that can go towards customs, furniture, whatever.
if you're really dedicated to making money without gralat packs, you do the bounty hunt daily for 1k, loot atleast 1k-2k daily, and then farm the rest of your moneymaking time. you'll get up to 5k daily if you work hard enough.
then if you have a pc, trialplay is always a good option.