Personally I would not do the 500 because it is the entry level machine and the accessories aren't really available for it. There is some aftermarket support, but what I have seen looks kinda cheesy. Bang for the buck wise I think the 900 is a better buy. If you are looking at the full size 570, I would go to a 900 instead. Pretty close to the same physical size, but more tow and cargo capacity. The 500 and 570 models can haul 500 lbs in the bed. And 1000 lb towing. 900 and 1000 models go 1000 in the bed and 2000 Lb towing.
I don't use a Ranger on the trails, but I did take my 1000 to a guided trail ride location to help with set up. I went everywhere the ATVs went as we prepared the trails. Made every corner without having to back up or maneuver. According to the specs, my Ranger will go 63MPH although I have no idea why anyone would want to. Since I assemble them, I have driven all of the models. Turning radius doesn't really change between models until you get into the crew cabs and 4 passenger RZR models. If you can find one you can get a base 900 with power steering for a reasonable price.
My 2C worth. We got the Ranger for work around the property and LOVE it.
Mine: 2018 Sportsman 850SP - 26" Bear Claw HTRs on OEM steel wheels(I really don't like the Aluminum ones)
Polaris Hand warmers, Mirrors.
Hers: 2019 Sportsman 450. 26" Bear Claw HTRs on Moose 427X Wheels.
2007 Sportsman 500 EFI, Polaris Winch, 25" Bear Claws QSC Clutch Kit, Hand Warmers
2001 Magnum 325 MOSE 12" rear wheel conversion. 25" Sedona Coyote tires
2017 Polaris Ranger 1000XP - Roof and front glass
2018 Kawasaki KLR650
2001 Magnum 325 Warn winch and Moose 60" plow-Sent to Daughter and Son-In-Law since his blew up
SOLD 2004 Sportsman 600 Twin