Fujas will work just like any other ski. If you wax them like every 2 weeks they're as fast as any other ski if not faster. and you don't need that many skis. Just get the fujas and some mogul skis.
Forget about a mountain ski. Fujatives will work all over. They're 85 at the waist so on the rare occasion we get pow they'll do fine. If you were alot bigger you'd wanna get a really fat ski for pow.