Following a lot of outdated tutorials, piecing together information, I managed to succeed in modding Petri into ACNL!! here she is :-)) I also modded some interior to look similar to her ACNH-home. Due to the nature of her texture-pattern, i unfortunately couldn't include her multicoloured ears - but imo it's OK !! I opted to show her eyes, rather than making her wear the standard opaque glasses.
(pls note, im not available for modding-help rn)