With no concept of your driving ability, I'm still going to say yes, a stock X or Fronty (4wd of course) can make it up the backroad. Stay off the obviously more difficult obstacles, and get out and walk up ahead if you'r uncertain of how/where the trail ahead will lead you. There should be plenty of traffic on a saturday so if you go FUBAR, it shouldn't take long for someone to come by and help, at what cost I can't presume. Just bring plenty of water, recovery equipment, and as a side note, if you smoke, be extremely careful as to how you dispose of your butts. That mountain'd go up faster than a, well, think of a metaphor for something catching on fire really quick..