Front brakes not working

Got my 2012 Gem E6 about a month ago and just now finding out about some issues with it.

I was replacing the half shaft and noticed the front brake rotors we’re a little rusted and sure enough - they aren’t activating. Rears work fine. Any tips on how to diagnose? Should I try and bleed the brakes? I can’t even find a replacement master cylinder.

Also noticed the bushings are bad on the shocks and boy they aren’t cheap!