What you need to know:
Length - The Map says 7.3 but is closer to 8.4
Water - Unreliable. it would be best to get your water at legion lake.
Water crossings - a couple of small bridged creek crossings
Camping - Camping within custer state park is only allowed at designated campsites or within the french creek natural area, so the only available camping on this section would be at legion lake
wildlife - buffalo are possible. Deer and marmots
Trail condition - The trail is well defined and very easy to follow. if you are mountain biking, this section would be one of the easier sections. over half of it is logging roads and most of the rest is well defined single track.