I only use the stock foot pegs when stopping and starting out. My feet go right to the pegs on the motor guards.
I have them adjusted down as far as my feet will reach. Keeps my legs straight and takes the weight off my but.
Hand wings are good, especially in cold weather. When their closed I feel heat from the radiator.
Backoff tail light unit makes me feel safer. Extra tail/ running light on the bottom of the license plate lights things up good.
The M..St.d windshield is the best money spent.
Volt meter, gear indicator, handel bar risers, all good stuff.
Givi trunk on the back is great and blocks the tail wind on my back.
Hand grip pads help with the arthritis. Probly go with heated grips later this fall.
Probly get an air Hawk too.
I put a hitch on but don't know if I'll ever use it.
12V power outlet in the left pocket.
If your gonna add electronics, add a fuse block first, And pull a circuit up to the front with a little termination block on that too.
Almost forgot, the plastic throttle hickie that goes around the right hand grip.
I point it down so my thumb is on it. Works really good and helps with the old soar hands.
Aeropegs - I have them and I do like them. 1st they look .good and folded in they are stealthy. I sat on another F6B with a set that clamped on the crash bars and they felt good. I hate to say better than my Aeropegs...but I did like the feel. The flip side of that is they would also be more easy to drag in the corners I'm afraid.
Rider back rest - I am one of the minority that honestly felt comfy on the stock seat...but I still wanted a back rest. I bought the show chrome rest and I absolutely hate it. I just couldn't it to play nice for me. So I ended up with an Ultimate King with a rest. It works for me.
Belly pan - I bought the black one just to stay with black. The macgyver pan was my 2nd choice but color won. If I ever need to buy a new one I may go with the Mac pan.
Kickstand pad - never really needed it but I have a piece of nylon scrap that stays in the left cubby pocket just in case I encounter some soft ground
Throttle lock I can't help you with...mine is a 15 so I have cruise
Same for the headset...I'm just using an eBay cheapo
Good luck with your spending spree. Lol. Hopefully you can do enough homework to only need to buy once