i sell to brokers most of the time. in fact only one since almost a year. i dont get the best price, but i am sure to get my money.
always trade huge amounts, 1kk and more and i use western union as payment method with that company. fee is very high, but i get it cash. no tax, no documents. give the gold, wait 1 day, go to your bank/western union office/post,... wherever western union is present, fill a piece of paper and get the cash.
paypal limited my account after 3 buyers scammed me. got my gold, opened a paypal ticket, got their money back (even digital goods are not under buyer protection regulations). end of the song, i got limited, cos buyers scammed. funny story, huh?