ShotgunMiss,
I would like to suggest an alternative answer to your problem. #1, a well cared for used shotgun of most types can be bought for 1/2 to 2/3 of the price of a new shotgun. Most of the better grades are bought and used by people that make sure thier guns are very well cared for.
Why not look around in some of the better gun stores until you find a gun that suits you, and spend a lot less than buying a new one. Take the money you saved on the gun and locate a stock maker that can fit a stock to your dimensions, which will have the palm swell on the right side, will have the toe cast out to fit a womans anatomy, and have the right amount of cast off to fit your frame, and will have the proper drop and pitch to fit you exactly. If you do not go crazy on the fancy wood and checkering, you can probably get the stock made for you for the amount left in your budget, after buying the USED shotgun.
Once you get your dimensions that you need in a shotgun stock, you can shop by mail with different stockmakers and possibly save some money before you actually buy.
About 20 years ago, I had myself fitted on a "Try Gun" at Fajens stocks in Warsaw Missouri, to fit a Winchester Model 12, trap gun I had just bought. I had the dimensions written down for me and I filed them. I bought the stock for that Winchester from Fajens, but I have bought other stocks from other stock makers to fit other guns since that time. Every one of the guns has fit perfectly, and shot great. The only problem is that I put on about 30 lbs, and now those stock dimensions no longer fit.
I hope this helps solve your problem