Hey, I had an idea for your team. It seems that a Sand team may be best for your. You can run Excadrill, Thunderus, Hippowdon/Tyranitar, Claydol, Blissey, Scizor, Bronzong, Gastrodon, Mamoswine and Metagross in combinations for your team. I researched some stats and found that Excadrill and Thunderus or Hippowdon/Tyranitar and Thunderus can be ran together in a combo EQ+Flying type evasion combo. Also, you mentioned you wanted to run Scizor; it can be ran effectively with Blissey as a literal Firewall with this set:
Blissey@Leftovers; NaturalCure ability; Bold nature
252 Hp/252 Defense/4 Sp.Defense
1)Wall: CalmMind, Toxic, Softboiled, HealBell
2)Offensive Wall: Softboiled, Healbell, Mudslap & CalmMind
3)Support Wall Annoyer: Wish, Rest, SleepTalk & Healbell
4)Defensive Set-Up Wall: DefenseCurl, Seismictoss, CalmMind & Psychic