That's great. Have fun and my best advice is to go over everything with a fine tooth comb. This will take some time so it pays to let the tech know you plan to test every system -lift, beds, hitch, power (A/C and D/C), all plumbing, heater, air cond., stove, and fridge. You get the idea. Also, have them show you the location and size of every fuse throughout the camper. Its been awhile since my pup days, but this goes for any type of trailer.
There are PDI checklists on this site and elsewhere.
Have a good one!
DW, 3 Kids and our Goldens
2012 Shamrock 233S
2008 Toyota Sequoia 5.7L 4WD