It's a fairly easy ride compared to what you guys are doing. There's a few "hill climbs" that would be challenging to a beginner. Not impossible, but definitely challenging. Probably good training. No sand really. The climbs are just moderate with some good sized rocks. Worst thing is there is some water to cross. I've done this trail a number of times in my truck. The water can be up to hood-level in the spring. I walked it to be sure since I was alone, and it was about knee deep. So again, doable, but challenging for a beginner.
Note that... I'm not 100% sure of the legality. One end of it was posted as private, which I don't really get. But lots of signs of people using it. The north end was gated even, but then there's a well used trail going around. I didn't see the gate until the end and I wasn't going back. There are also roadways that intersect it, and they are not posted. This is all new. We took a group of 20 trucks through May 2019.