Originally Posted by cross-country
I would expect a rough track, deep silt, and A LOT of whoops. If your "tourists" are novice (or better) dirt guys on mx bikes that are prepped well, I think they will be fine. If they are dual-sport guys on KLR, DRZ, ect. on 50/50 dot tires and tubes it will likely turn into a multi-day torture-fest. YMMV
I can't say with certainty that what I'm seeing on the map is stuff that I have personally been on, but I have been on a decent amount of terrain in that area and I don't remember any of it being easy (except for the lake bed).
Don't think that because its "only" 250 miles that it is easy. The whoops will take their toll on both body and equipment. Don't like sand whoops, that's ok there are rocky whoops, don't like rocky whoops, we got rocky sand whoops for you.
Truck access to this course is good. Try to talk a 4 wheel team into letting you see their BFG book, it has all the info you could ever want about the course and local areas.