If part of your win condition is going to be a specific card, you want to run 4 of them.
Also, you're pretty much running green for one card, and that's mana fixing. Probably not a great idea. Red also just for a few cards. You could easily make this UB or mono-black and probably increase consistency. If you want another 1 cmc artifact over bomat, you could run
augmenting automaton. It doubles as a mana sink if you need one.
My recommendation would be make it UB, get
Marionette Master to 4 and add some control spells over
cryptolith fragment.