Hey uniM!
Are you getting stuck at the OS install or at boot after installing OS?
First I would try disabling your eGPU and installing the RX 470 instead of the opposite.
Also you seem to have too many drivers in your EFI folder, too many useless drivers might mess up your installation or boot. Check out this awesome guide from Acidanthera about our specific Comet Lake builds.
BTW I found that OC 0.7.0 was much better than 0.6.5. But be careful not to mix OC versions,
your plist, drivers and kexts all have to be of the same OC version.
Here's a screen grab of my EFI folder.