Get 7,500 credits to start with take 7,500 credits to Nelson (get there by Owmi port selection) there you can purchase Gold ingots for 500 each instead of 1,000 at koorong buyat least 15 gold ingots at Nelson and make you're way to Koorong sell enough gold ingots to the man in the gold/currency exchange shop (left of port entrance) sell enough ingots so the gold's value drops to 520 credits now go to Nelson and purchase as much gold as you can you should end up more gold than you origanally had with more gold in hand go back to Koorong increase the number of gold ingots you're selling to include all of them DONT PRESS THE CIRCLE BUTTON!!!! Instead decrease the number of ingots you're selling to 0 (the number you have in you're inventory) you should notice the price of the gold has just risen sell off you're Gold Ingots until the price has become 520 credits again and then go purchase the Gold Ingots from Nelson this should give you lots of cash but the catch is dont get more than 50,000 credits doing this cause if you try to get more you will lose all the credits and gold you have... do this again whenever you need to fill you're "pockets".