I don't know, this yeti seems to be a dead ringer for cousin Jed.
taller than an average man (seven to eight feet)- Ok maybe not
covered with long brown or auburn hair (or white hair in the case of the Yeti) -maybe personal hygine was never big in the hills
a strong, repugnant odor- BO + cheep booze will do it
large feet, as evidenced by castings of footprints - dragging feet after coming down from a week long meth bender
an aversion to man - aversion to work maybe
a piercing, eerie howl - Rebel yell?
The challenge is not just to find peace but to be peace.