i think hes allowed 10,000 us like most countries. but why carry much more than that for a vacation? and imprisonment for carrying so much sounds strange, I think its completely suss and if i was you i would be careful,,,, usually when on connecting flights you dont go through customs (i may be wrong)

if its true that he has a huge amount of cash, surely he has money in a bank account at home or friends that would believe in him enough to send 1000us, allllllll too strange for me