Jayco shows a lift kit on their web site under options. Call your dealer to see if they can do it.
I agree that the sewer drain is pretty low, I might do the same thing.
I wonder if it can be done in a driveway. I have jacks, and tools, and my dealer is like an hour from here, and I can probably do it myself.
Maybe I'll call my dealer tomorrow.
Model X19H Expandable
GMC Sierra Pick up
Been a camper since I was a kid, and that was a long time ago :)
From pup tents with no floors, to tents with floors and flies, to a pop up, to the expandable.