BigJim -
Without going into a lot of detail you proposed plan of action while interesting and at first blush sounds good it in reality would be a disaster for the wild fish and potentially the recreational fishery. These issues have been discussed here a number of times and don't know if it is productive to re-visit them.

Just a couple bullets of the issues-

Your plan does not address what is limiting the wild steelhead production in the basin. Putting more spawners on the gravel will not lead to more fish the next generation.

Impossible to avoid many of the pitfalls that make hatchery rear steelhead less productive when spawning in the wild than the naturally produced fish

Does not necessarily follow that the using wild brood stock will result in higher survival rates of the smolts.

Mining the wild fish to support such a program typically increases some of the negative hatchery/wild interactions in the spawning population leading to less productive stocks.

While if such a program was undertaken it might produce more late winter/spring fishing it would be at the cost of the early season fishery with more complex fishery management problems and higher natural produced fish impacts.

Tight lines
Curt