Why not just forget the trout, slot the smallies and turn the Holston into the river for big smallmouth, which is seems to be able to sustain without help from TWRA? Advertise that, and bring revenue into the area. Spend the trout money elsewhere on a more temperature consistant river.
If the hatcheries are truly going to suffer the lack of Federal funds then put the fish in a river where they are more apt to survive other than predation, and poachers, and not worry will the trout make it if someone catches one after June 30th.
I am a great admirer of spectator sports, especially on television; it keeps the riffraff off the trout streams.