The guys and gals post up trail rides that they do regularly. They will tell you (or you can ask) if the run is suitable to a stock Rubi or not (some are...and some aren't)
If you are looking at good references for lone wolf rides, I suggest the following books for a decent reference. The Nevada Trails: Southern Region
I find to be more user friendly and I'll use it first if I have the preference. But there are some definite gaps (no Potato Ridge/Rocky Gap?...really?).
The second one is Great Basin SUV Trails Vol I
which while not as slick (black and white throughout), does cover more.
They are both good trip planners to a point. Due diligence and trying to confirm things have changed are still required. I think the most "fun" was coming upon some wanna be militia members running a Class III range on the Anniversary Mine Trail (#37 in the Nevada Trails
)...its private and you have a range going?
No idea if they actually had the right of way, but they had the hardware (and more ACU / Multicam gear than me...and I'm active Army...whatever), so I and the fam politely backed on out (and got a couple terrain features away most rickety tick).
Ahh, good times.
I don't know how familiar you are with off roading (Jeep or otherwise), but if going alone, just ensure you never hit something that you can't make it out of (reverse must always be a COA) and the possibility of mechanicals must always be on the mind. I was "out there" with the fam a long way away from anyone else just yesterday, but I've shaked out my old Rub pretty good in the last four months where the risks are somewhat low. Your newer one? Shouldn't be in the same boat as my '03.