Well, 95% success (was 100% before reassembly).
LOCA glue is relatively easy to apply and compensates almost all scratches.
But... I think that I spent too much time with the UV light to cure the glue and the shrinkage ratio of the glue was slightly hugher than the expected 2%. It generated a small crack in the glue layer, at the bottom of the screen. That... of course appeared 2h after I finished.
And... I might have pressed a bit too much the screen when assembling everything back together, so now there is a small area with yellow lighting whatever the screen light temperature.
Nothing serious and now it's alive again, but... This is frustrating!