Here are the five boxes. They are pretty tightly packed. Based on this it appears that I have about as many of these as I do of either of my Hirst Arts dungeon sets.
Here’s a small cave I threw together from about 1/5 to 1/4 of the pieces.
Still need to be painted, obviously. And I need to figure out how/where to store them. For right now my goal is to cram them back into their boxes somehow.