camperboy

Congrats! You'll love it.

Glad to see that you're going for a WD hitch. Remember for pay as much attention to the brake controller. Currently the Prodigy is favored by most BBs I frequent.

If you don't have: sewer hoses (clear part, 2 10' hoses, connector to join 2 hoses, park sewer elbow adapter, foam ring), water hoses (white for drinking water), electric adapters (20 to 30 amp), and an 30 amp extension. You might want to see if you can add them to the order.

Other items you may want to pick up:
disposable latex or heavy "rubber" gloves (NOT the kind you might use at the kitchen sink for dishes - they're pourous! For dumping holding tanks.

toilet chemicals

spare 15 amp fuses, 12v

squares of plywood to place under the jacks, prevent sinking
strong board for under tongue jack. Same reason.

Rags. Countless uses like: greasy hitch parts, dirty power cords and water hoses, etc.

a 1/4" allen key chucked in a cordless drill makes short work of cranking down the jacks

Well, guess that was another ramble.

Camperboy