Hi! It's hard to say about the roads, if they have been graded they will be okay. In the past, we have parked cars at the bottom and sort of ferried people up in the truck, but it would be helpful if more members besides us come with a truck. Generally the roads are pretty passable, I just haven't been up there yet this year myself to say for sure.
We are not doing an overnight up there this time, but you can certainly camp up there or find lodging. It would be a bit chilly though for camping this time of year.