Well first to power your bot you only need 2 Wildfires because the cold fusions are heavy it will help you save weight
Also DON'T USE THE DRILL MOTORS AS DRIVE that's essentially using the piglets for drive in DSL.
Use the UNSTOPPABLE Motors and use the green energy spikes on your drum as they will save weight because they literally weigh 0
also use the metal hinges for wedges like that not the skirt hinge.