Shinbone, you specified 2 3/4" chambers. That limits the pool of Brit 20's significantly. There are WAY more W&S 20's with 2 3/4" chambers, simply because in the post-war period, they were the "big dog" when it came to making boxlocks in significant quantity. As noted, 20ga does push up the price. If you were looking for a 12, you could find a nice W&S 700 for less than you'd pay for a new AyA 4/53. 20ga, that's not likely to happen. And the W&S 700 series is an awfully good place to start for your first English double.
