OK I'm back with an update. This sh** took forever my dudes. I didn't realize there was a directory with like 4400 files in it.
This application is wild, it's all over the place in the code, there's no autoloader, files are required/included where needed, and PHP code is generated in the code to build classes on the fly, it's really some epic sh**. I wasted a LOT more time than I meant to reading through this. The licensing and key generation system is pretty convoluted and then also pings an external server at times, so this is going to be a toughy I think.
Anyways, I'll dump the decoded files here in this post. I'll follow up with a second post where I tried to start some nulling, I'd appreciate it if anyone could give it a shot. If you want to go through the code and see where I made changes, just
`grep -rin "NULLMOD" ./*`
in the root directory where you extract the files.