Uncaptioned, 70 images (could of used less but I like his faces), 15 minutes or so (had to crop the dataset so its just the face).
JK- works perfectly fine with raw generating but probably best used with inpainting, either manually or with adetailer.
JK+ needs you to inpaint it, do not raw generate with it.
Disclaimer: Will likely give your generations a crazy smile, JK likes to do those.