I carry 8 pieces of 2X10" pressure treated cut to 16" lengths to shim up under the tires on unlevel sites. Can also be used to support my floor jack and jack stands for service (Tire replacement, bearing service, etc.)
'16 Sunseeker 2300, the front is lower that back, loaded or unloaded. I level side to side when loaded, with bags, no problem. Is the front end supposed to be lower for some reason? Aerodynamics? Seems to me, pulling into a "level" pad, there should be no reason to have to level the motorhome ... thoughts?
Fridge should be within 3 degrees front to back and 7 degrees side to side per Norcold. I use a bubble level app on my phone to check. Just make sure to remove the case on the phone.