Congratulations and welcome.
First things first: Find a good predelivery inspection (PDI) checklist and follow it when picking up the new unit; don't sign any papers or hand over a check until
after the PDI is complete.
During the PDI make sure every last little thing is exercised: water (both city and internal), generator, slides, stereo's, oven, stove, etc.
Once you've taken it home have an alignment done. Find a local truck/commercial tire place to perform the procedure (you can try Ford dealer's but ones that can handle RVs are few and far between). You may be able to negotiate that the dealer pay for this..maybe.
If you find things during the PDI that require parts to be ordered
do not leave the coach at the dealer while parts are being ordered--insist on bringing it home and returning it when parts are available. This will prevent the dealer from holding your coach hostage.
After all that the main thing is: have fun with the new rig