All repair items work regardless of item condition.
This mod changes the minimum required item condition of all outfit and weapon repair items to 0%, so you can repair them regardless of condition.
How to install: Place the "configs" file into your Anomaly "gamedata" folder, overwrite if need be. Works for me, works for my friend, should work just fine for you too. If you run into any problems with this mod let me know and I'll try to assist. No new game required.
If you feel these settings are a bit too generous, you could always change the minimum required condition yourself by changing the "repair_min_condition" values in the file.