Compact the chassis and Don't really be afraid to have those drive motors to hang out/ be exposed at the back
this is way more true in dsl. the main reason to do that in dsl is the chassis armor is so weak but it's a lot stronger in ironforge.
kel, i think you're on the right track. i would definitely try to keep as close to either 200kg or 400kg (the ironforge MW and HW weight limits) as you can. you currently have a super underweight HW that you could easily stick 85kg worth of armor or weapons on and there's no reason ever to not do this.
your batteries are good (each gives 20amps, motors use 10amps each). your weapons are a little less than ideal but easily remedied. I would definitely add more weapons and some side armor would probably help too. your two bottom spinners currently are doing almost no damage because most weapons in IF only do damage on the blade or the tip (depending on the weapon, of course). it's difficult to use FS-weaponry well as a result but you can do it if you use weapons without normals. Alternatively you could either make it more of an HS or you could angle your weapons to something like this:
(https://gametechmods.com/uploads/images/92175innocentiii.png)