Yea, soon you'll be able to rent out Hitler's old war base........
You already can. There have been a few events up there (film launches, etc).
I really don't see the point of turning this place into a tourist "attraction".
It already is. It gets about 175,000 to 200,000 visitors per year (although David Irving reckons it gets far more).
why does Poland want to restore his old War Lair?
They don't. And even if they wanted to, they couldn't, as anybody who been there (or even seen a video of the place) knows.
Anyway, as far as I know the forestry lot only own a 50% share in the site: the rest is owned by an Austrian company.