I added a few things to the 500 on a budget recently, thought I would share...
Smittybilt 3K winch $100 and KFI mount $55
Larin UTV Rack $60 and Plano Box $25
24" LED Light Bar $35 and Goofy Switch $12
I also disconnected the sway bar and it seems to ride much smoother without much body roll, actually is much more stable at slower speeds as the suspension can articulate better. $Free
Smittybilt 3K winch $100 and KFI mount $55
Larin UTV Rack $60 and Plano Box $25
24" LED Light Bar $35 and Goofy Switch $12