Hi, I have a H&R Topper Jr. 22 inch barrel with recoil pad. I was wondering can I get the stock shortened? It's already a youth stock but I want to bring it in closer to the body more. I was going to see if I can get it cut down about 3 inches or so and the recoil pad replaced. Also, I was going to get the barrel shortened to 18 1/2 inches. How much spread does an open barrel has than a modified choke barrel? I'm modifying the shotgun for home defense use. Thanks for your comments.