Whayden2003, are y'all planning to camp out? If you are looking for a cabin to rent, we just went and were pretty happy staying at Cassatot Lodge Sugar Creek. We just went for the 4th of July weekend. I think we stayed at the Mine Creek lodge - basically a dated cinder block home with 2 king beds and another twin bed in the living room. House wasn't super nice, but it was somewhat private, had a couple small ponds in the back yard, and the AC was cold. Fridge, stove, towels, etc. all included. 2 showers. I think we paid 140/night.
To answer your questions - most of the cabins near the national forest have drive access to the trailhead(s). You may have to get on pavement for a couple miles but everybody does it and it's accepted - no patrol cars giving out tickets or anything.
The riding at Wolf Pen gap was pretty good - lots of single and 2-lane gravel roads along with intermediate trails with varying degrees of difficulty. We rode 2 days at 40 miles/day - could have done more but it gets pretty hot this time of the year and the little ones get wore out.
Waylan