I have spent a lot of time in the woods here in the Shenandoah Valley of VA, and we have very little to no habitat like you are describing. I know of very little to no aspen or tag alders in our woods. We do not have many young stands either. I do know our RGS chapter has done some work in Highland county, but I am yet to check it out. Where I live, I am mostly in the mature, hardwoods, mountains. Lots of mountain laurel though...
As far as your dog and wife go, you could always have a friend watch the dog while you are traveling? What you should do is get a "rescue" dog (not really a rescue, but how could your wife turn down giving an abused pup a home?) about 6 months before you tell your wife your retiring
. I hope you get another dog; I cannot imagine just one day not having a dog anymore after so many years.