Looking across E. L. Moore's photos of Elizabethton on the Elizabeth Valley RR the two constants seem to be the depot and the Red Eye Saloon. Both are shown in the above along with a little building tucked away in a corner near the bridge.
A cropped version of the above photo appeared in Civic center for Boomtown, published in the March '63 issue of Model Railroader and described the Red Eye Saloon's construction. If you only are concerned with the construction of the sandwiches served there, you better go here instead :-) I think Adam's General Store shown above is the little building on the layout near the bridge.
Scrawled on the back of this compromising scene on saloon's upper floor is: Do not use. It wasn't, but now it is.