You made the impossible, you're the man, bla bla blah. We all approve your genius, Now let's do something useful.
I've tested this with the Blizz ABS, RMX-OS, half of the Tons of Addons enabled, Multiple Message Windows, CCTS, Ryex's Collapsing CMS, and many, many other scripts (even some yet unnamed made by me) in my project and NOTHING DID CRASH. Well, at least after I've repaired the MMS issue: The initialize method of the Window_Message class needs an 'msgindex' argument. Also the initialization called in the Scene_Map has an argument of 0 specified. Fix:
alias zer0_resolution_message_fix_init initialize
def initialize(msgindex)
zer0_resolution_message_fix_init(msgindex)
self.x = (SCREEN[0] - self.width) / 2
self.y = SCREEN[1] - (self.height + 16)
end
All we need is a pair of brackets and some characters inside

So, nothing did crash. But... There are some major issues with the Blizz-ABS:
1. HUD is too 'low' and it's not visible (same for the RMX-OS chat window, both covered with map)
2. Blizz-ABS battlers have similar issue - there is no priority of their 'upper' parts, if you're 'north' to the enemy, his head doesn't cover your legs.
Well, they are not
that major, but still this is a must-fix.
And my personal objection:
The player's character appears at the same position of the screen as in the 640x480 resolution instead of the center of the current resolution's rectangle.