I found the ESB in a used bookstore in the late 1980's. It came in a large 11x17 book where you removed the staples and cut out the building. When I joined WW I dragged it out where it had been languishing for years and built it, for practice. I am amazed it survived the move.

I found what MAY be a similar one on Ebay:

http://cgi.ebay.com/Paper-Models-EMPIRE ... dZViewItem

Here's the actual article, I think:

http://www.amazon.com/gp/product/custom ... 87-9492805

And Again:

http://www.bestwebbuys.com/Build_Your_O ... c=b-search

Thanks for the links! (That's the last thing I need to do is track one of these down... My girlfriend quipped last night about getting another storage locker in our apartment building...)