Thanks for the feedback everyone.
Here's the updated proposal.
Turn off and remove:
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Maximized Night Display - use NO
Less-Spoilers Tech Tree Viewer - use NO
Turn on and remove:
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Martial training at any time - use YES
Display if weapon is two-handed - use YES
Show 2-handed indicator in inventory - use YES
Extra bleeding indicator - use YES
High Stun indicator - use YES
Show item weight in inventory - use YES
Friendly craft escort - use YES
Single-handed weapon unloading - use YES
Rework and remove:
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Automatic Night Vision - if xcom units generate enough light that the screen is not pure black, don't do anything... if "pure black", turn NV on automatically
Remove wounded soldiers from training - remove them, but remember if they want to return to training after recovery (automatically)
Display map borders on the Minimap - turned off by default, turn on by pressing ALT
Convert into a mod option (instead of user option):
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Statistical Bullet Saving - default NO
Draw enemy radar circles - change to 0 (never draw), 1 (draw if hyperdetected), 2 (always draw) => default 1
Hidden (in options.cfg), modder can fix (it's not possible to convert this into a mod option, that's why it unfortunately needs to stay here):
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Start-Up Text Mode - default 0 # 0 = vanilla, 1 = remove dos4gw and soundblaster text, 2 = remove all text
Keep (as user option on the GUI):
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UFO landing alert - default NO
Wounded fight if base attacked - default NO
Play Briefing music longer - default NO
Select Night Vision color - default 8
Auto-Sell Manager - default NO