"I have about 5 miles of specific trail work in mind for next summer. Mostly for selfish reasons"
Radical idea - hardly. I'll bet a fair number of us on here that hunt USFS have done exactly that - to some extent or another- "for selfish reasons"
A bunch of geriatric cowboys - Backcountry Horsemans Of Montana - have been doing that for years. My mom's husband was one of these old fart's on the trail until he became too blind to get on his horse at around 82 years old. When he describes places in the Spanish Peaks, it's by "up that pine ridge to the north by the two big boxy rocks above the crick comin' into the lake". He doesn't know what a lat/long or a UTM is

Backcountry Horseman's is more a Gray Decoys outfit......