Getting new 5th wheel Lots of questions!

We looked at a 2017 Grand Design Reflection 27RL yesterday and fell in love with it. Did the paperwork and it should be hitched to my truck in about 10 days

I don't think you are asking all the right questions. You will likely be close to or even slightly over your truck's payload capacity with the gross weight of the fifth wheel at just under 11,000 pounds. Add in the hitch weight and 20 percent of the fifth's weight on the pin and you will be at or over 2200 pounds before you put anybody, dogs, bikes, kayaks, bbq, etc into the truck.