I really like the deck idea and I think
Storm the Vault has some real potential. I have put my suggestions below.
Whirlermaker seems really slow at 7 mana before you see the first Thopter and you already have plenty of late game mana sinks.
I would recommend
Pia Nalaar instead, you get a thopter for much less and she is a mana sink as well.
She also provides a way to get creatures through for
Storm the Vault triggers.
Replace
Wall of Forgotten Pharaohs with
Gleaming Barrier. The treasure works in well with your game plan and you are not running any deserts.
Prophetic Prism seems like it would be a good fit for this deck. Helps with improvise spells, mana fixing and
Vault of Catlacan. Best part is it replaces itself.
Mechanized Production also works with it to draw an extra card each turn. I would recommend replacing
Cultivator's Caravan.
Might be worth incorporating some Aether Hubs or Black/Red dual lands to improve mana consistency.