The 3.5 inch would be perfect. I'd pay for reliability. If the gun is tuned or just happens to be extremely reliable as-is that makes it all the more valuable to me. Accuracy just has to be enough to keep the shots on a pie-plate at 10-yards. Stout load capability would be welcome. Perfect function with #11 caps would be convenient as a have #11 and #1175's and find #10 hard to come by but that's not a deal breaker.