Maybe, I'm a hunter/shooter not a collector. That said M/F chokes in a double gun are not optimum for me. IC/IM would me a little better. SKT/F would be my choice in a 20Ga. terc 's response is something to consider also. No Winchester Xpert here!
So back to the maybe. Does the gun fit me? Is the gun lively in my hands, inspiring success with it?
To address your concerns. If the price is right chokes can be readily manipulated if your looking for a shooter.

Chief