As I said in the last post I made, I had the intention to upgrade the guts of my newly bought guitar. I switched out potentiometers and pickup selector for something that wouldn't feel as cheap, added a coil split mode through push/push pot and added a treble bleed to brighten up the tone. Everything I needed I found on Thomann.
Here's the schematics I made with DIY Layout Creator, which is a really cool piece of free software that I can only recommend if you're into this sort of stuff. You can find it on FlatHub as well.
Thanks! Well soundwise she's still under scrutiny, since the previous owner changed the original pickups for a set that's exceptionally dark and it isn't really a sound that I'm looking for (hence the treble bleed mod I installed). It got better than it was but I still have to test it a little bit.
Luckily the guy kept the original pickups, so I still have the option to swap them back in.
Edit: In any case the coil split manages to make a great difference tone wise which I didn't expect because these pickups are still from a cheaper brand