Eh I have -76% discount on everything in act 3, yet to see anything that costs more than 3k gold for purple gears, all of which I bought and I always have like 20k+ gold from looting and selling everything that is at most 1 weight for 1 gold.
Even rotten food, collect it all, sell it all.
If I needed any more gold I could sell all the excess camp supplies, I haven't even sold my owlbear egg yet.
