Welcome aboard! What I did was get the price from the dealers "near" the factory. Then add transportation to where you live. But do shop around. My local dealer was $13k more than a dealer I found five hours away. The local dealer would not budge.
Also you should understand that unlike passenger vehicles, RV dealers are NOT required to service a unit that wasn't bought there. So consider that in your negotiations. It was a big surprise to me.
All in all, I am a noob. I've only had my rig about 5 months. But I love it. And this forum has been an amazing resource. Folks are very kind here and strive to help.
Added: HWH Kick-Down Leveler; RoadMaster Anti-sway bars; Tornado Rotary Tank Rinser; Accede Backup Sensor Kit; cylinder locks (w/one combo lock); custom sink cover; Kenwood DDX 5706S front radio; Pioneer MVH-X5560BT rear radio; Oxygenics Shower head; ScanGuage II; Blue Ox Tow Bar w/RVi Brake 2; Winegard Rayzar Automatic TV antenna; Trimark Steel door lock; Dometic 310 toilet; whatever is next.