You're kidding...right. Half the people I see full timing and such have trucks 10 years older than yours with double the mileage and they're on the road all the time.
My truck is a 2008 with around 125k miles and it still rides and looks like new. We just crossed the country from VA to CA last month pulling our 5th wheel and we won't be back in VA till June. Your mileage is nothing for a diesel pu Especially deleted. I don't understand your worry?
BTW, what does LMM stand for?