I am testing alsmost the same build, with those changes:
-2 Gorilla Shaman
-1 Platinum Angel
+1 Chalice of the Void
+1 Tangle Wire
+1 Barbarian Ring
I can not go under 4 Wires. This card is amazing against everything, and when combined with golem, spheres and smokestacks it becomes even more stronger. Also, a first turn chalice of the void for 0 is better then a first turn shaman. Except by the fish matchup, i will always play chalice of the void for 0 against almost every deck. Shaman is indeed amazing (if I could find space, def i would add some), but you are already using chalices and null rods, so i think it isn't so needed.
Also, with 4 golems, I don't think Plat is needed. You already have a fast win condition, and if you are fearing tinker, you can always add some Pyro/Reb on the side. But playing with 9 "spheres" effects in this deck, i think they will have some troubles to cast a tinker. Geting rid of a resolved tinker with a combination of wires and smokestacks is dificult sometimes.
I am still testing this version and the MUD, but i think the fact of having welder and bazaar in the maideck, gargadon, pyro/reb and rack and ruin in the side, might make it a little bit stronger. One thing is certain......This golem is BEAST.
4 Wires is a must, it buys some extra turns when you are being overwhelmed (i.e. fishy decks or turn 1 tinker.) by the way, it makes easyer to perform a wirelock with welder.