Bro, why u need so much gold?
U saw how easy to find upgrade? Beside all is BoA... U cant buy anything with that gold, only crafting which also cost very little.
The bounty rewards plenty gold, sufficient I think...

IMO RoS is purely all Self Found.
Saw how Kripp play, 3 days start from fresh, din't spend much gold also. Yet his stash already 52m gold. Upgrade from loots... almost every run there's upgrade.
If this is true.. I say there's nothing to keep anymore. Use one char to farm for other chars. Can reroll the stats if you need INT/STR/DEX.