Need help making a Sandstorm team

[kakashidragon]

I was thinking of using a sandstorm team in witch I never tryed before, so I need some help with some good pokemon to use. I'll list of some I am going to use. Most of the pokemon I picked I used some sets from smogon.

Hers a few i want to use:
Flygon (cause now garchomp is uber, I have to use another ground and dragon type)

Hippowdon (my starting pokemon, I used smogon's set for the stealthrock/slackoff thing)

Tyranitar (just in case hippowdon faints and I need more Infinite sandstorm)

Ryperior (My SwordDancer sweeper, hopes it works for me)

For now those 4 i picked.I was thinking of using cradily and swampert for typeing other than rock and ground (well swampert is ground but mixed with water)