Well, you can always farm with another class and then use that to sell things.
I was never a big SG player, but right off the bat I had said Amistr Hat upper, any Mid you prefer best be LRW or maybe Music Ring, any lower. Alligator set at a nice high refine, Angra (rental one or a perma one if you got investment in that), Strong Shield and I assume Recons as accessory.
I also made a FAQ post, in case you got more questions, maybe that helps: