...As of today we upgraded our trailer as well, adding 250lbs to the total on the hitch approx. 2350lbs loaded. The Escape towed it just great, including hills on the way home.
Your 2015 Jayco 1007 UD 'pop-up' has a gross* frontal area of about 39 sq. ft.
The 13' Scamp has a gross frontal area of about 50 sq. ft.
That's an apples-to-watermelons comparison when talking about wind drag which is (Area x drag coefficient) and
increases exponentially with velocity (driving speed).
In any case, the OP certainly has experience with low-power vs large-frontal-area RVs, owning a Toyota Dolphin. Not too many of those nifty rigs on the road any more, it's been awhile since I've seen one .... I shared a campground with a beautifully maintained one a couple of years ago, the owner gave me a tour, it was neat!
Some folks don't mind 'taking it slow' and that's perfectly cool, too!
- I hope you enjoy your Scamp, I'm a long-time 17' Casita owner and love the similar full-fiberglass shell construction. After 11 years it's as solid as new. But I tow it with my pickup, I'm perhaps a bit less patient than you on the highway.
Oh, and to your original question, I think you've got it as far as needed equipment to get the rig going - you're obviously going to be attentive to the weights and balances. Just try to keep that tongue weight closer to the 15% range rather than less, IMHO that does more than anything 'added' to prevent the initiation of the dread 'sway'. I tow at 15% front-weight-bias without any friction device and have never had a hint of sway but I understand the use of the device to give more confidence (it can't hurt anything).
*gross frontal area = ground-to-top x width ('travel' dimensions)