Hi Andrew (and all)
Yup. Your assumption is correct.
I have been fortunate enough to visit this place and have get a tour. (Filled a memory card with pics, as well.)
It is something else!
It is on Mr. Littlefield's private property so you need to have an invitation.
I meant to upload my pics to the General Forum, but it was too much hassle. Now that I have a DSL, maybe I'll try it again. (But they are pretty much what's on the website.)
The Panther in question was indeed, pretty cool. Apparently the Germans had abandoned it, but not before setting off a demo charge in the interior. (Or so they say.)
Cool place!