Yes indeed it is a very interesting thread, resuming all steps we have to do in order.
Unfortunately I tried several times.
OK guys, so I have a good and a bad news. The good one is that my Hack is working now with graphic accelerations ! The bad one is that I've just installed an AMD Sapphire Pulse Radeon RX580 8GB for the hack.
Moreover I didn't have to install any special drivers or kext for this. I installed AMD drivers on the Windows SSD but it's really independant. In High Sierra SSD when I was on the Clover menu, the resolution had already been improved. The same on the desktop then. Natively supported I guess.
I think my 1060GTX Windforce OC 6GB wasn't compatible. Maybe it was VBIOS, maybe the core itself, anyway I couldn't update the BIOS (already up-to-date, in Gigabyte website). So Nvidia it's over for me so far. I'm a bit sad, the 1060 is a great card, but now I don't want to spend more time on it.
I keep in touch on this tread to know if you find a brilliant solution !
Good luck guys !