I bring good tidings from a different forum:
https://f95zone.to/threads/kmc-unlocker-for-v0-1-7.135665/post-9911862
Turns out someone else already did my work for me, I just had to dig a little. I've linked the original post of the cracked 1.9 files and attached the same archive. However, the crack only included the two modified files with their directories empty. You will need to move
WebMeHarder.js
and
boot.0638d62b3273627bbccf.js
from the crack download into their respective game directories, manually replacing the original .js files with the cracked ones. You can't move the whole directory because the other game files are missing in the crack. It's easier than it sounds, I promise.
A bunch of the paywall features are simply not finished yet (mostly futa), so they don't work regardless. I think.
Credit:
MysticXcore - Posted original 1.7 crack
bigmacreejr - Claimed author of 1.7 crack
JankoHraje - Converted 1.7 crack to work on 1.9