+1 on wheel bearing grease tool and grease bearings as well as all chassis grease points.
Set Ride height, I would go 1" above Fox settings at loaded weight to start with. It will settle over time and you'll need to readjust.
Break in machine and belt, I swapped on my spare belt at 400 miles and broke that in, now I have a broke in belt to install if I smoke this one.
Go over as many fasteners as you can and check torque. Sway Bar End Links are super common loose items, Control arm bolts can have serious consequences if run loose.
I found my rear shock resivior clamps loose and missing some hardware.
I added as many factory storage items as I could... Upper and lower door bags, center console, overhead, tablet holder, Not alot of storage spots on the 2 door.
Depending upon your riding style and area you'll want a windshield or helmet(s). If it's hot and dusty like here in the high desert, no windshield and helmet works best. Windshield gets covered with dust and glare and makes the cabin way too hot.
No windshield allows fresh air to keep you cool and the dust blows straight through. I use motocross helmet and googles, If I ever replace it I'll probably try a modular full face helmet with a flip up chin guard and visor.
In the colder months a windshield really helps keep warmer but still gets covered quickly. Glass windshield with wiper and sprayer would be ideal.
Other things I appreciate that I've added are Sizemik mirrors, rockblox mudflaps and rock deflectors, Ryfab XL Storage box, Tilting tire rack and spare tire, S&B particle seperator, lithium jump box, small air compressor or CO2 tank, first aid kit, fire extinguisher, shovel/hatchet/entrenching tool, tool kit, chainsaw, tree saver, tow strap, winch remote, VHF comm and intercom, Tablet with gps and avenza maps....
On the bench for install is front gusset and shock brace, limit straps and front swaybar delete, and more lights.
On the future list is EVO stage 3 or 4 tune, shock revalving, rear swaybar disconnect...