I need to fill a void in my Marlin collection. I own a Model 60, 880SS and XL7. A 336 in .30-30 needs to join the crowd. I know there are a ton of different variations of the 336 out there. What are some of the better ones and are there any I need to avoid? Am I better off buying a new one? Are the older ones better built? Any and all opinions are welcome!