Being a Mini fan, I can agree with some of the original post, but I find nothing wrong with factory Ruger 20-round mags. My Mini-14 GB, 580-series, is very close my perfect rifle for so many purposes.
I don't need to get all fantasy-minded with my idea of something I may build soon. I will start with a Marlin 1894 in .357 magnum, and render the safety totally inoperative, so the thick Texas brush or a car seat cushion cannot push the safety button to the "safe" position. (There is a set screw that can be tightened down really good, freezing the safety in place.) I might remove the crossbolt safety entirely, and replace it with a bolt custom-made for the purpose, or a custom sling attachment of some type. Then, it will get a better open rear sight, or perhaps an XS Sight set-up, and/or perhaps a scout scope mount and appropriate optic. I as recently examining a Steyr Scout, and the scout scope set-up solves some minor vision problems that have been creeping up on my ability to use open sights.
To take things a step further, it is possible to modify the buttstock mounting system to a pull-bolt style, which can enhance accuracy. Of course, there may be no need to do this if the rifle is accurate enough as-is.
Why a Marlin .357 rifle? Well, a friend did some of these things with a Marlin, and chronographed several types of .357 ammo at amazing velocities. He hunted various critters with this combo, too, until, unfortunately, he lost his Marlin to a burglar. This guy used to be a co-worker of mine, in law enforcement, and he knows his way around all manner of black autoloading rifles and accurized long-range rifles. His little Marlin seemed just about perfect. I have several .357 revolvers around, which simplifies ammo logistics. The Marlin is certainly slimmer than a Mini-14. I had better stop babbling, and go visit the dealer. Those 1894 Marlins don't usually stay there long.
