Current scrap price of brass is $2.13 per pound. So it will take probably at least $3000 to buy this lot.
At 2.13 a pound thats over 6600$ . Plus you pay a 10% buyers premium and sales tax. Even a uhaul from Arizona you looking at several hundred extra dollars for flight there and rental/fuel expenses back. Its just not worth it.
Last time I looked on gov liquidation there was a similar size lot of 5.56 at crain naval base.