Welcome abosrd from an ex Minnesnowtan(ASSuming from your avatar you live there.
Seat. I went with a Seat Concepts DIY seat kit and have the front raised using the washer trick. In over 40k miles since doing the washer mod, no issues.
You may want to avoid the GPS mount from SW Motech. The plastic parts that slide together developed play in them, had to JB weld them together. The rubber isolation bits also seem to be developing a looseness. I plan on replacing it with a PVC tube anchored between the windshield supports and using a Ram handle bar adapter.
For aux power i have installed a 6 place fuse block with LED outage indicators near where the computer diagnostic port is wired up r\to shut down with the key. I have circuits for aftermarket horns, Chameleon+ oiler, aux lights, Rostra cruise control and heated grips. i may also put in a circuit for a heated shirt that DW and I made.
For the grip control I bought this pulse width modulator:
Unfortunately no longer available, perhaps Digi Key would have something or adapt something else to work.
I wired up a battery tender lead to handle charging of phone, GPS, etc so I can charge w/out the key on. I ran the cord extension into the tank bag for distribution.
The location on the dash is problematic for a power outlet as the Barkbusters interfere with all but very short lighter plug ins. Just an FYI.
All in, I like the bike. The chain drive was/is a hassle coming off of shafties for the past 38+ years, though I also have a KLR. Only issues, covered under the extended warranty, have been a warped brake disc and fork seals. I bought the bike with almost 12k miles on it almost two years ago, it passed 51k yesterday. And it is not babied, way too much fun flogging it. I fully intend to have well over 100k on it before the warranty expires.
Do consider installing a series rectifier/regulator, your stator will love you for it. A search on this forum will turn up good install info for that. Do note that the '15 and up are different installs than the earlier bikes.