No worries. Between the Airstream and the Lightning, I have been on a steep learning curve the past 8 years! A sway bar just reduces sway, doesn't redistribute the load.
My Lightning does have Max Tow. I have been very happy towing my 16' Airstream on all kinds of roads last summer without a WDH. I do use a sway bar, especially on the highway or long trips.
I just from a long-er distance trip with my dog and camper. The two charging stints went well. I unhooked once but then realized it wasn't really necessary and opted not to on the way home. I did a lot of research prior and things went acording to plan. I like to camp without hook ups but...