Yeah, Mantisamusements seems to be making the volcano chute.
I paid $2450 for mine, and it was pretty rough. Even so, I feel lucky to have the game. Mine absolutely needed new ramps, and for all practical purposes needed a new plastic set (at least 3 were broken.) The gorilla was also broken when I got it. I've probably got $3k in mine now, with new parts and LEDs, but it's absolutely worth that to me.