Gold charms are 50k each in the wastelands; if you don't want any, you probably don't need very much gold. The only thing I needed gold for there was to buy a set of leggings, and I found more than enough loot there to pay for them. I also bought spell books I didn't need and charms I didn't use.
I traded in a loop a couple times to sell off all my stuff; Verdistis, Ars magicana, the dwarven halls, and back again. By the time I got to the start, they had replenished their gold.
If you want, there is a bug you can exploit to carry much more than you should be able to;
weight bug and disappearing chests.