Take a look at the 'past events' on 200LCDC.com and you will see that not all participants have the setup that Gene Lambert has.
At the age of 69, I attended the 2017 event as a 1st timer with a stock 2015 LC (including P285/60R18 tires). Damage report: one tire with a damaged sidewall
2017 Breckenridge
In 2018, I attended the event with a set of sliders & 285/65R18 KO2 tires on my 2015 LC (and we did 'Black Bear' with a great trail leader & the assistance of an excellent spotter). Damage report: minor 'rash' on the stock front bumper & a couple of scratches to the powdercoat on the sliders.
2018 Telluride
Would I liked to have had a 2" lift and an aftermarket front bumper? Of course! Maybe in 2019.
I would like aftermarket skid plates, an aftermarket rear bumper, lockers ... but they are certainly not required to do many trails.
Beware ... if you try 'wheeling' your LC, you may like it. I did and the participants at the 200LCDC events were more than willing to help a 'newbie'.
In regards to medical care (if needed), there is a Level III trauma center in Montrose, CO (40 miles/45 min by vehicle from Ouray, CO). There is a Level II trauma center in Grand Junction, CO (100 miles/2 hours by vehicle) and multiple Level I trauma centers in Denver, CO.