A sculptor is creating a large hollow rectangular sculpture from solid marble blocks, each measuring 1 foot by 1 foot by 1 foot. The sculpture's outer dimensions are 10 feet long, 8 feet wide, and 4 feet high. The hollow interior has walls and a base that are each 1 foot thick. How many marble blocks does the sculpture contain? Refer to the diagrams:
(Top View)

(Side View).