Turns out I had a couple void blades as prizes from fighting the voidlings. Also got everything else you suggested. I'm excited to try it out.
I definitely use lens flare, I've been one able to one shot the lower level voidlings without Varia is the Bomb, and the wave 4 one with. I'm happy to have upgrades for when the difficulty ramps up.
It's been ages since I've actively trained, so right now I'm just getting level up to where I can train other stats again.
I think I spent around 2 mil, so that was *extremely* within budget. Thanks so much for your help!