This is the build I use:
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Monsters; 21
x3;Ancient Gear Gadjiltron Dragon
x3;Cyber Valley
x2;Cyber Dragon
x2;Ancient Gear Knight
x2;Ancient Gear Beast
x2;Green Gadget
x2;Red Gadget
x2;Yellow Gadget
x1;Ancient Gear Golem
x1;Jinzo
x1;Machina Fortress
Spells; 14
x3;Geartown
x2;Ancient Gear Castle
x1;Trade-In/Solidarity
x1;Machine Duplication/Solidarity
x1;Heavy Storm
x1;Giant Trunade
x1;Terraforming
x1;Mystical Space Typhoon
x1;Heavy Storm
x1;Brain Control
Traps; 6
x2;Compulsory Evacuation Device
x2;Bottomless Trap Hole
x1;Mirror Force
x1;Magical Hats
Extra Deck; 15
x2;Chimeratech Fortress Dragon
x1;Ultimate Ancient Gear Golem
x2;Stardust Dragon
x2;Ally of Justice Catastor
x1;Mist Wurm
x1;Red Dragon Archfiend
x1;Thought Ruler Archfiend
x1;Black Rose Dragon
x1;Ancient Fairy Dragon
x1;Brionac, Dragon of the Ice Barrier
x1;Goyo Guardian
x1;Armory Arm