He certainly does look - Quite Elk-like in the top photo's, doesn't he. Quite Regal, even for a middle-aged one, judging by the antlers, but hey do angle back like an elk's. With nothing to judge against, he could be 250 to 650lbs. In the closeup, his face looks like a Prairie Mule Deer. I had thought the Sambur had a face more like an Elk. Looks like the saddle (back line) of an older animal.
: Thanks NitoX.