Width v's Height

I have just purchase a 03 Triton GLX 2.8lt TD dual cab ute and wish to replace the standard tyres 205/80/16, total diametre of 734mm. I’m considering either the Dueler AT D694 235/70/16, total diametre of 736mm or the Wrangler ATR 225/75/16, total diametre of 744. My question is would I be better to get the Dueler AT’s as they are the wider tyre and closet to the standard tires original overall diametre or would it be better to go the narrower tyre in the Wrangler ATR and gain a 10mm height advantage? The vehicle will mainly be used on the sand and on the gravel tracks around where I live, with mainly camping gear in the back. My second question is will I be able to fit the 235’s on the standard 6 inch rims?