As JumboCarrot strives to add more features and make the game ever the more challenging, I am here to make the mod easier
Behold an even LIGHTER version of SensDep Lite, this time in addition removing the obfuscation of the System Icon images found underneath both ships' UI. Here is a screenshot of what SensDep UltraLite looks like (with Sensors Lvl2):
As you can see, the icon overlays are still removed, so you still don't know which room is which at the start of combat. BUT, you at least have feedback of what system a particular rooms hold AFTER damaging it. This removes the unfun-ness of hitting rooms and not knowing what you actually hit (particularly if it isn't something obvious like Weapons or Shields). Also, this makes Combat Augments from CE useful again because now you'll know if the enemy has a particular system in the first place, before deciding to use power to activating the combat augment.
I've experimented playing with this version a few runs, and I can safely say that this now adds a very comfortable extra layer of difficulty to your regular runs, and that you can actually run this without lowering the difficulty that you usually play on.
Sci-fi immersion-wise, you could probably rationalize it to the tune of each system emitting a unique energy signature that your base sensors are able to keep track of (and whether it is running normally, damaged, or turned off). But you aren't able to pinpoint exactly where the signature is coming from within the enemy ship. Something something

.
It feels and plays great though!
SensDep UltraLite
(Screenshot taken with SMPK's Remastered GFX Mod)