Stefan, it depends on the condition of the track at that time. Usually when the snow is on its way, Corde ,the owner and rest of his crew build up the track with a small bob-cat digger, which makes it easy for the 1st 20 vehicles, but after that it can become horrendous. I never go up on a weekend as this is when everyone is there, however, i've done it plenty times on my own during the week, after hundreds of 4wd have raped the mountain,...huge ruts,loose boulders,very steep, not easy going.look, i've seen many a big rig turn around cause they couldn't make it up the steps,but it depends on alot of factors at that time i guess. If you got a diff lock it makes life a hellova lot easier let me tell you. The kak part is if you have old snow, which ends up with a thin layer of ice on top, terrible. Fresh snow is powdery and easy to drive. Its alot of fun with great views,well worth it mate. I was fortunate agin this year with heavy snow right down on farm level,again , in which case you dont even need to drive anywhere i you prefer not to spend 3 hours white knuckled....
My advice, watch the weather and weather systems and try time it right, and definately call them the afternoon before to see if there is existing snow, then you garranty your boy some snow!
Ps: take proper gloves or you gonna hate it so much you'll just wanna go straight back down.
Ps: that vehicle of yours should have no worries in the world if you drive sensibly, and drop pressures etc etc.