My take is; there isn't anything an AK that's particularly expensive. Buy a couple basic trigger groups, buy a couple spring kits, at least another bolt. Hell, put Gucci parts in your gun now and make sure you shelf the OE parts.
Take it from a guy that lived in NJ most of his life, to inude the 94-04. Buy it all now, as much as you can afford. It's an personal and financial investment as various bans hit.