Austin, if you decide to go that route, I have an '05 Era 140 (the white one) that I would sell you. It's in good shape...no sliders....$125 + shipping.
I will say that I agree with jason on this one...if you want to know if 3-stage is right for you, pick up an older Byerly or the previous Parks board...those things BUCK! The substance or premier/era will probably be an easier transition from your current ride.
Good luck with whatever you decide.