Shane- thanks for the vote of confidence there! LOL! Right up my alley. Sheesh, you'd think I know how to get a young woman started in this thing (right Dawna?! ;-) )
A simple tent would probably suffice. I have priced them out allot, since we bought a new one last year, and tend to favore Fall Creek Sutlery or Blockade Runner. Both can be bought on line at their sites. The thing I liked about the Blockade Runner one was the fact that the sod cloth and the double doors were included on the officers tents. Plus a little extra height.
If she is going to display her quilts then she should invest in some easy to move wooden tables, or boards and saw horses. Stay away from plastic tables. They may be lighter, but boy do they look cheapy in a sutlers tent.
As for dress, Martin, have her email me. (which I know you are trying, but I am putting my 2cents worth here for the moment. Ha Ha)