No, They are not but they are not fixed neither you can move them to accommodate a custom height.
i need to purchase more shelves for this cabinet, where can i order these
Yes you can cut the bottom
It's 24" deep and 18" wide
All sides have oak finishes just the back is raw which usually go against a wall to anchor it
I would guess Walnut. The company may actually know exactly.
I think you can do this but you would need proper measurements and tools but yes the doors are symmetrical I believe.
No room for crown molding. The door comes very nearly to the top of the cabinet.
No you just remove hinges from style frame and rotate door and attach to opposite side of face frame. Very easy to do.