Fondle the 500s, 88s, and 870s to see which one is set up well for you. I shoot left handed so the 500s and 88s are my only choice do to the location of the action release. If I were buying now, I'd go for a vent rib mossy or maverick and whack the barrel down to 18+ inches, add a hiviz sight for 10-15 bucks and an elastic butt for 6 bucks and call it a day. Think of what you can do with the other $200-300! You might want to look at a youth model (1'' shorter stock) to see how it fits. Nothing wrong with 20 gauges, either.