Z97a, ASUS R580.
It went smoother than I thought it would.
1st I renewed by hand some kexts I already have in my EFI.
And it was fiasco...
After 1st reboot Installer bar was going very slow to nothingness....
Then, I just ran Mojave Multibeast 11.3. and after that I started installer and left the room.
When I got back in like 25 min Mojave asked me for Pass!
Didn't expect it to be so easy!
Wow!....
No pain at all.
It changed SSD to APFS - so far I didn't notice any slow downs because of that.
USB 3.0 is fine.
USB3.1 with Thunderbolt card -yes.
Wifi - yes.
Audio - built in audio stopped working a while ago(have no clue why), but my additional audio_usb plug works great.
Apogee Duet 2 - yes.
Updated DaVinci to 16.3 and some important bugs are gone - and this was the main reason to update System.
Didn't even opened my BIOS.
Thank you guys for saving me thousands of $$$$$$$$!!!