"donnyB7"....That could be the best engine ever made, but since you had to come on here and ask about it, it's obvious it wasn't a popular engine. When they first put a Mercedes in a DP, it looked that that could be the future of DP's, but they never took off.
Like I said, they could be a great engine, but you'll have a hard time reselling the coach if you don't like it or have issues. I'll bet whoever is selling it has been trying to for awhile.
Don & Mary
2019 Newmar Dutch Star 4018 - All Electric
2019 Ford Raptor Crew Cab