I really need some help guys, could you help me with this deck please..

You should add de-fusion for special summoning monsters when its targeted by an effect or if you want to attack with its materials. You should also consider adding Gear Giant X and some other XYZ.

Umm... what is this deck supposed to do? It looks like a Machina Gadget deck ran into a Cyber fusion deck and out came a horribly convoluted mess. Please elaborate on what your "Perfect Machine" deck is supposed to do. And there isn't much synergy between those two deck types except for the fact that the Cybers serve as Fortress fodder and the Machina Gadgets as Overdragon fodder, but that's only 1 card, not to mention that you're providing all the ingredients for an opponent's Chim Fortress. Extra needs Gear Gigant and main needs Goldfish.

Which would work best, cyber, or gadget machina?

From what i've seen machina gadget is better.