Prior to turning off other addons as you instructed the CTD was typically immediate after spawn— so this was progress (able to fly for a few minutes ).
This is the most important information. It's clear the previous exceptions were caused by one of the add-ons you removed, otherwise you wouldn't see any change.
Now, while you might have removed all the P3D4-native addons that installs using the add-on.xml method, it's possible you still have several addons using the legacy installation method of the DLL/EXE.XML files so, you should try by disabling these as well.
Check the following files, by opening them with a text editor, like Notepad:
%APPDATA%\Lockheed Martin\Prepar3d V4\DLL.XML
%APPDATA%\Lockheed Martin\Prepar3d V4\EXE.XML
%PROGRAMDATA%\Lockheed Martin\Prepar3d V4\DLL.XML
%PROGRAMDATA%\Lockheed Martin\Prepar3d V4\EXE.XML
And for each of these files, check which add-ons are installed and, for each of them, change the following line:
<Disable>False</Disable>
Into this:
<Disable>True</Disable>
This will disable all add-ons using the XML files. Be sure you repeat the process for all 4 files. Then check again KORD.