In my mind, a 26-27 body is not a "T-bucket". Some very nice examples posted and great illustrations but those are just 26 or 27 T roadster pickups. I think the original intent was to see a 23-25 style body set up as a roadster pickup without the bobbed box and probably without a stretched out suicide sprung front axle. The period picture above with the insane roll bar is a real good example. I'd say it works if you keep a good eye on proportions.
A friend of mine has a very nice all steel 1926 T-bucket pick up for sale. Drop me a PM if interested.