I did the front end a while ago, and I just used the cheapest banana seat and sissy bar I could get. Basket bars are Origin8 C;assique CargoUnit. I used a threaded fork and stem.
I saw an AR long saddle go for $200+ on eBay. I figure it was Grizzly owners bidding it up to reupholster as the controller needs to breathe and it is not advisable to put a wood plank reupholstered saddle on the Grizzly like you can the X-Class. I even saw one saddle made with a breathing hole.
They say you could ride with this Vincita handlebar cover, although I haven't tried, I just use it for parking at work for added rain protection. Was around $10 on Amazon. I also have a baggie over my display held on by rubber binders that stays on 24/7 as I can see the display just fine day or...
Light off-road trail riding, but it is not a BMX bike that I would want to get any air with. I'd get a mountain bike style e-bike if that were my wants. This is more of a mule cargo commuter.