As a general rule, if an SP offers a uniform, then I like to see a photo of it in her public gallery. Then I can see the degree of realism/effort involved. There are some very tacky examples out there, especially in the "nurses" category. Read the profile, look at the pictures, do your homework (all part of the fun IMO!).
Alternatively, offer to buy her something you like; expensive, but you can be sure of what you are getting. (I have never done this myself, but some SPs allow it).