Thinking about purchasing a 2013 6.7 Powerstroke Diesel

I'looking at buying a leftover 2013 fORD f350 superduty crewcab 4X4 shortbed 6.7dieselTO tow my 2010 Cougar 5thwheel 327 RES weighing fully loaded 12K. Myold truck was a 2002 7.3 F250 diesel which I...