[busterbrown]

I second the Rhinoflex brand by Camco. Tested and proven. My suggestion is to definitely stick to the basics requirements for your first trip.

Things that come to mind:

1. Two 10' sections of Rhinoflex sewer hose and clear elbow adapter
2. 50' Fresh water hose.
3. Wheel chocks
4. Portable EMS (not just surge)
5. Dog bone adapter(s)
6. A couple of quality extension cords
7. Water pressure regulator
8. Fresh Water line filter
9. Tall step stool (or ladder if possible)
10. Scissor jack hex drive 3/4" socket (as well as a battery power drill) for stabilizer jacks
11. Blocks of wood for leveling
12. Polypropylene mat
13. Quality camp chairs (you'll be happier with them)
14. Portable DC air pump (I'd suggest a VIAIR)
15. TPMS for the coach tires (already suggested)
16. Digital air pressure gauge
17. Laser IR temp gun
18. Fuses
19. Road flares (you never know)
20. Axe (if you build campfires)