I have emailed/contacted stores of the brand name purse manufacturers (Coach, etc) about making some CCW purses but it has fallen on deaf ears. I have adapted my Coach purse to accommodate a holster inside my purse that I can easily access pistol when needed. So far, all purses made for specific CCW are unacceptable.
How does the holster in your purse stay in place when you draw?
Years ago I took a pistol course from a woman. she had a purse custom made to hold her pistol. Her purse had a cross body strap and She said when she walked down the street she had her right hand in her purse and on her pistol at all times and could draw and aim in a second.
I got the impression that she would love to have some one assault her so she could blow them away!
I think the best you can do is a fitted insert. My sister has one from packinneat.com.