This may sound a little odd, but I think you may have less of a problem than you think. I've spent a lot of time in forests in the Pacific Northwest, and they are all in states of change, of course. For example, as appalling as they are, douglas fir plantations are the easiest place to find certain mushrooms, like chantrelles. Fantastic food.
Yet our land, not logged in over 80 years, a beautiful diverse setting of mature bigleaf maple, vine maple, hemlocks, huge red cedars, and some remaining large alders - no chantrelles, ever. Not a one. In my observation, the chantrelles are part of the system that is re-naturalizing, at least attempting to, the nearby doug fir forests. Of course, those forests will be cut before that cycle can be accomplished.
Another example, friends have a large mainly doug fir woodlot that they've restored over 40 years. They harvest a few trees trees each year for their small lumber mill, and
sell those as
sustainable timber. The rest are on their way to becoming old growth, if they can keep it going long
enough. The trees are towering, HUGE, with walking distance all between them like a well-established cedar grove - their careful thinning has worked. The forest now has an amazing understory. Huge 6' thickets of black huckleberry all around, and lots of other
native plants.
If I were to start with a monoculture woodlot, I'd follow their example with careful thinning over time, encouraging of native food understory species, but I'd add in innoculating all the stumps or logs of
wood I cut with mushroom spawn. Whatever will grow in that specific wood.
On an edge closet to the house, that's where I might explore introducing other species. But I'd leave the majority of it to recover more naturally. Spread natives that are missing, and let them take hold and rebuild it. It is so spectacular watching a forest rebirth itself. Keep us posted, whatever you do!