Here is my Orthanc that is made of extrude foam as well. I bought this off of ebay from someone in Canada back in like 2000 or so. Its a little dusty...and has never made it to the game table. It has amazing detail and comes apart in 2 sections, and was not that expensive. I do believe I have found it on the internet before from the makers website. I am pretty sure he has his own blog and has made other LOTR terrain as well. I will have to look him up. But as far as it not being in a game, I will be changing that in the future. So many battles to play. I need a bigger game room, (with air conditioning).
It stands about a little over 2 feet tall.