Thanks Guyaros,
I was able to do the same conversion on my newer FFCP. Installed the Hemera and Duet Wifi and your configs worked very well. I ended up adding a BLTouch as well which has made homing the Z-axis more accurate plus adds all the benefits of bed levelling and mesh.
I remixed your Hemera mount to add a mount for the BLTouch and a 5cm post to tie the wiring to. Seems to work very well. I’ll post the remix on Thingiverse.
Thanks so much for your efforts. Much appreciated!