It's not that hard ,take as much as you want ,but you have to declare it he and there . Also have proof of it coming out of your account here ,and for customs in the USA ,have a reason for having the money on you .take the Pomona swap meet details with you and tell them you are here to buy a Classic car .dont take to much to the swap ,only enough for a good deposit ,then pay later and pay at a bank etc .make sure they have a clear title to the car with them or no deal .pomona has a lot of crap but you never know and get there very early on Sunday ,go sat arvo as well .get onto socalcarculture.com and have a look .