While new pine is indeed soft and reactive, well aged pine is surprisingly stable. And it is damn hard.
I have burned the temper out of several drill bits drilling through old pine/fir.
I have run across a lot of old Yellow Pine here in Texas that fights taking a screw.
Pine can have a lovely, delicate grain to it, though. Especially heartwood.
Plan on burning up some tools. It could be a very worthwhile venture.