it all depends on where you live for 54r surplus. where i live, i have a gunstore,big chain mind you, that bought 3 cans of 1954 milsurp 54r. they sell individual packets for 6 dollars each. not tooooo bad but. if you want an entire spam can, you pay 63 cents per round plus tax.
and theres a real gunstore that will order anything 54r for you. provided you pay a dollar a round, even if you want to get that 99 dollar spam can from aim surplus. even new production ammo is the same. buck a round plus a special order fee thats never defined.