First off, absolutely amazing design.
I recently returned from a deployment to Afghanistan, when I got home I had promised to finish a portion of our basement for my daughters to have a play/gymnastics/drums play room. So I framed out an 18x20 room and left a door towards the back of the room where I have built a bookcase and intend to make it a hidden door as well.
I've been busy and so for about 4 months the bookcase is just sitting in the doorway, still trying to figure out how to mount it so it works perfect.
Now I come across this AMAZING thread and see how you did a pocket door, and I have to say, I NEVER thought of that as a possibility, but love the idea!
Your execution is flawless and you taste in cars is very similar to mine. I have a 2010 Camaro SS, a '67 Camaro RS/SS (protouring) and a Ducati Streetfighter. Can't yet afford the other Italians, but the dream is to add the new '14 Stingray and a Ferrari 458 Italia. I can dream right? haha
Keep up the updates, would love to see the tunnel progress.