Before I invested in a fancy, heavy suspension addition, I would get a TPMS and a good air pump. I find that having the info to warn of a critical situation can help you avert a wide number of issues.
We have over 6,000 miles of highway (1,000 or so of a road caled the AlCan) with no issues so far. Now bad traffic jams and high heat nearly got us in Atlanta, but it also let me know to pull over and let the tires cool down before a failure.
Also if you have one of these systems, do you have a spare should the issue they solve for occurs? Afaik, the Jayco hawk series of class C's don't come with a spare.
We had to buy a spare and a mount for the hitch. Sure you have road side assistance and maybe a tire protection package, but if out of cell range or out of range for most towns, then what? Oh and You will need a a BIG bottle Jack, and a means to get the lug nuts off and back on, torqued properly. Like a fire extinguisher, I hope I never need it, but when I do, I will have it.
A little food for thought. Oh and when I checked the air in my tires after picking it up from the dealer, they were no where near what the door sticker from Jayco said they should be.
Carl & Dawn
2015 Greyhawk 31FS
2015 Ford Transit Connect (our TOAD on a DEMCO Dolly)
DW, DSx2, DDx2 Catx2 Dog
Tampa Bay Area of FL