Welcome to the forum Medic318.
Congrats on your Newmar many safe miles for you.
Here is a Brochure
and Owners Guide
will give weights and tank sizes plus functions of your coach.
If your coach has not yet been loaded with your stuff the front end may change when weight is added.
Have the coach weight and adjust your tire pressures to Michelin tires
and may find a different ride if not than add the good shocks plus
check other suggestions.
Welcome to family and enjoy.