I own a Marlin 1895 which was converted to a 40-65. I am going to send it back to Marlin to get it converted back to a 45-70. Which barrel length and magazine length should I get installed? I was thinking maybe get the 18.5 inch Ballard barrel and the longer 6 shot magazine installed. What do you think? Should I look at the longer barrels? Is there anything else I should have done?