Could someone please copy their cfg folder and upload it somewhere?
I dicked it up too much and messed up with my over-reliance on my poor memory :c
If you still have BlackMesa.7z:
-Open it and extract the cfg folder
-Merge it with your screw-up cfg folder and replace all the files.
Have fun!
I don’t
I’ll have to redownload the entire mod just for one file, I guess
It would take very little effort to just upload yours… 
Which files are messed up? I’m not sure how to upload files but, maybe I can help you by posting the default values for the changes that you’ve made in your file/files.
Not sure if you still need it but here:
https://www.catzeyes93.com/resources/cfg.zip
Feel free to change them yourself, but the config file has all the keyboard keys bound to some sort of command. (some dont even work but I am too lazy to hunt down the correct command) But other than that, the default stuff is as it was in the original download.