Chaos Disaster Dragon

[Voidreign]

I have been using chaos deck for a while. LAtely I heard about traditional version of dragon deck. It sounded interesting. Can anyone help me to make disaster dragon deck. I would do it myself but I never played dragon deck. Also I want that deck to have Chaos emperor dragon Envoy of the end (because I love this card. Its my personal favourite card)

[FSU2011]

-18 Monsters
1x Chaos Emperor Dragon Envoy of End
1x Black Luster Soldier Envoy of Beginning
1x Dark Armed Dragon
3x Red-Eyes Darkness Metal Dragon
3x Red-Eyes Wyvern
1x Magician of Faith
1x Gorz - Emissary of Darkness
1x Light and Darkness Dragon
2x Prime Material Dragon
1x Cyber Dragon
1x Delta Flyer
1x Cyber Jar
1x Dark Horus

Spells - 18
1x Future Fusion
1x Painful Choice
2x Mystical Space Typhoon
1x Mirage of Nightmare
1x Harpie's Feather Duster
1x Pot of Greed
1x Graceful Charity
1x Change of Heart
1x Snatch Steal
1x Dark Hole
1x Raigeki
1x Monster Reborn
1x Premature Burial
1x Monster Reincarnation
1x Heavy Storm
1x Dimension Fusion
1x Dragon's Mirror

-4 Traps
1x Imperial Order
1x Call Of The Haunted
1x Royal Decree
1x Ring of Destruction

Extra:
2x Five Headed Dragon
1x Chimeratech Fortress Dragon
+ xyz monsters / synchros

[Voidreign]

This is sth similar to what I wanted. I think it would be quite nice if 1 wyvern ( I did multiple tests and found that 2 is all I need), prime material (2 is overkill), cyber (its ONLY machine in deck), Chimeratech (because Cyber was only machine in deck) and both Mystical Space Typhoon.

I think they are replacible. If I do so which cards should I add. I am personally thinking about Magical Scientist.