[probably off-topic , my apologies ]
For a project in my spare time (i.e. no deadlines) 
I am collecting all kind of info I can find on the net (so free/non free  fonts, books , specs, images raster /vectorial..whatever)   on the 
Kaiti (楷体) or “Regular style”
https://fonts.google.com/knowledge/type_in_china_japan_and_korea/type_classification_in_cjk_chinese

Any help would be greatly appreciated; there are no secrets, so we can use this ml or write to me privately, as you prefer.

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luigi