First of all, can you tell me anything about Condor over/unders? There's a used 20 gauge at for sale for $300 and it appears to be in mostly unused condition. I'd consider having the stock altered for my wife and daughter to use. My big concern with a $300 O/U is that it's likely to be a piece of junk. What price range makes sense for a used O/U in good condition, a gun that will be reliable and durable, but not heavily used.
Is altering a full-length gun a sensible approach to fitting a gun to a lady?
Alternatively, I like the idea of the gas autos, like a Remington. The lower the recoil the better, provided the gun fits alright. I don't mind wasting some hulls when I take them shooting because it won't be often. I won't be able to pick up their hulls at the range I go to.