Any concerns, new tires and batteries; actually late 2012, but listed as a 2013 because of added new features. Has the 500 Cummins, not the new K-3 chassis added in 2013. Concerned about the I-pad control center. Also very interested in 2013 anthem 44 dlq, very low miles, little use, very clean, original tires and batteries, but very well taken care of, red flag to...