My adventure with https://github.com/OlegMishin/A500_8MB_ide
First thing was to program ATF1508. I described it here: http://ataripcb.pl/ATF1508AS_prog.html
Next thing was: which Kickstart should I use? The answer is: Kickstart 3.1
You can find it on some websites about emulation. Working version is "Kickstart (USA, Europe) (v3.1 Rev 40.063) (A500, A600, A2000).rom"
You shoud swap bytes in this file, because it is intended to use in emulator.

Then grab 27C4096 chip and burn this file in Eprom Programmer.
Next step is to prepare CF or SD card. I had a CF card from my Amiga 600 - it works great with this interface.