I got tired of looking at $#@& builds, so I spec'd out my own.
Overframe doesn't show the damage gained from [Critical Mutation]. It's $@!%ing massive.
Critical Chance will be a decent 79.2% but Critical Multiplier will be 11.9x for some insanely big hits.
High Fire Rate drives the really high Status Chance, which pegs Cascadia Flare quickly. The Radiation from [Accelerated Isotope] and innate Corrosive synergize with [Galvanized Shot]. Literally do not worry about ratios and balance. Just drive moar damage and you'll do... moar damage.
Remember that [Critical Mutation] makes the damage numbers here [Reflect] a lot less than the actual output of the weapon. That said, 500k burst and 300k sustained would be alright on it's own.