Is it just me, or are you making it sound like everyone is just casually going to find multiple (MLB?) copies of very specific Hime weapons.

And you're also talking about making a 105% Assault/62% Vigor Grid, which sounds really fancy, but has the liiiiittle problem is being veeeeeeery unreliable even with Gaia. Once the first AoE Overdrive has been basically negated by Azazel and Gaia, the second one will just end your damage output. So you're gonna need to be doing content that you can end reaaaaaally fast to make proper use out of that Grid...