Single battery

I'm looking at getting a Deka 9A31 (actually the O'reilly branded one that's the same thing). For my Dodge Magnum. The Magnum has the battery in the rear and I do not have a suitable place to run a second battery so I want a battery I can run alone, no other starting battery. Will the 9A31 handle being a daily driver? I came across some truck/bus forum that mentioned that they did not have good luck with them. In addition to being the starting battery it will be running a pair of Sundown 100.2's and a Sundown 1500d and I have the factory 160 amp alternator. Will there be any foreseeable problems with this setup? (I live in Minnesota so the winters can get brutal). and if the single battery cannot handle the system I can make room for another smaller battery, but I want to stay semi-stealth. Going with a powermaster 3100 would be a possibility as well, but that costs more money of course.