What gaps are you trying to fill with the discs you're ordering? It seems like ordering a bunch of different discs kind of goes against the minamalist approach.
I'm no expert, but here's my take on it.
I'd go for a medium Wizard if you like stiffer putters. The supersoft isn't super floppy, but it is still soft. A medium will work well for putts, drives and approach shots. The soft is good, too.
You seem to have the midrange covered well. I don't know why you'd need a Buzzz. If you want a back up, get another Roc.
I'd swap a DX Teebird for the Cyclone if you want to stay minamalist.
The Orion and Avenger would just overlap with what you already have in your bag. If you want more discs in that range, look into different weights and plastics of the Valk and Orc. You might want to look into a dedicated overstable driver, like a Spirit, Predator or Firebird, though.
It sort of goes against a full on minamalist bag, but I like an overstable mid-fairway range driver, too. I use the Blaze but I'd imagine something like a Viper or Whippet would work, too. I think it's nice to have something that will fly overstable at a midrange type distance in a headwind. I use my Blazes quite a bit. You could always try using something a bit faster like a Banshee for to take this place and the place of your dedicated overstable driver. After throwing the DX version a vew times I could see how having a few of those in different stages of wear would be cool.
I don't think your posts are annoying at all. Keep 'em coming if you have questions.