Any local skate shop will have them. I like Daddies board shop in Portland. They have a huge online store as well. Very nice people there.
If you're going to replace your snapdeck, you want a minimum of a 35 inch wheelbase( if I remember right) or the wheels on the longboard will prevent you from snapping it down. Mine are all 45-47 inch long boards with one 55 incher
