Dignity. Always dignity!
If I pledge to get the core game 1.5 edition can I purchase existing expansions off his website and they will work ? Without the need of some upgrade kit or something. If so what are some good ones I should pick up.
Yes all expansions will work with the updated core game. Only some cards and rules are being changed, but the game is essentially the same and nothing becomes incompatible.
I'd highly recommend:
Sunstalker - has an alternate campaign, tons of content
Gorm - Seems to be a very popular quarry monster