Too late. It’s out there somewhere.

Didn’t calculate the price by weight. Just took the number from the 6" cube here and extrapolated from that since it was the easiest math.

https://shop.tungsten.com/tungsten-cube/

The 5’ cube is 1000 times the size of the 6" cube and the 6" cube is $15k. The prices don’t scale up linearly though. The smaller cubes are better value by weight.

Assuming that’s about 5x5’, and going by the price of the first tungsten cube found on Google, this would be worth about 15 million dollars. Decent prize of you could move 150,000lb.