Damn, Chris, going balls out with a fofatty for your first bike. That bike is slick, it'll have way more power than you'll ever know what to do with, and will get you in trouble if you aren't paying attention.
You need to send your suspension off, before you buy any stupid "look at me" parts, get your suspension done.
If you want a boot suggestion, I always like the Gaerne boots over aplinestars, both are excellent, I just preferred the Gaerne. The SG-12 is an awesome boot and $100 less than what you are looking at. The SG-10/GX-1 boots are just as good and a bit more affordable. Even the cheaper line of Alpinestar boots will be more than enough for you.
Have you looked at helmets? You need to try them on and see what feels best, this is one area I would say spend the money on a quality helmet. I always had Bell, Troy Lee, or Shoei helmets, all great, depends what you want to spend. Thor/Fox/FLy all are good, but you can tell a big difference in comfort and quality.
I know you love amazon, but these places have some good deals some times.
https://www.denniskirk.com/dirt-bikehttps://www.motosport.com/
This used to be an awesome forum, I haven't been on it in a long time. Broken pelvis, ribs, shoulder really stopped my mx/gncc riding.
https://ktmtalk.com/