Getting a result that doesn’t take forever and should work with the aesthetic dictated by the stylesheet. I hope. I feel like it’s not too realistic. I think underneath painterly base colors it will do what we want.
Sculpt:

As Normal Map in Eevee:

It’s about 45 minutes per board, but it feels worth it. Planning on doing a second pass on all of them to add sharp cuts and scrapes. Wanna see what it looks like without. I also don’t know if this water wheel needs to really look beat up.