R.B.
Hmmmm- any chance you can find a restaurant that will let each person pay for their own meal?
If you know these other women well, and this is something that you all came up with, then I think stating the price at the bottom of the invite would be okay. "$17 per person- cash or check only".
BUT, if you don't know these people very well AND this was something YOU thought of, it may come off tacky no matter how you state it. If you are truly the HOST, people may be expecting you to pay for their meal.
Just my two cents. Any other thoughts out there?
R.
PS Bucca di Beppo in Southlake lets everyone pay separately. :)