Thomas/Brio Train Display/Tidy Wall Cabinet

Hi Ladies & Gents,
I found this on eBay, and would love to know if anyone has any suggestions on how to make it? I live in Aus so this would be too much to post out here.
Am making my son the loft playhouse bed and want to put this up as a mount.
Is there a plan I am missing that could somehow convert into the train display? Was considering chopping up some actual train track peices and sticking them in, it was more how it would sit on the wall and stay together (I am complete beginner!)
Any advice would be great!

http://cgi.ebay.com/Thomas-Tank-Wall-Display-Storage-Rack-Train-Wooden-…

xx