Agreed. I posit female dwarves are just as prone to crafting as males but they're expected to do non-metal works. Sculpting, carving, etc. So wanting to work the forge marks her as "odd." Rune-working could be an end run around the cultural bias. Assuming we even get a female dwarf.
An orc waifu would probably work better at the Temple than the Farm. I doubt Julia or Annabelle (or Oakley) would be happy with an orc living with them. Not that Caleah would like it, either, but Qetesh could put in a good word for her and the Temple really could use another combat-capable resident. But, I think the best option would be to install her somewhere else that doesn't have a girl yet. Set her up as someone the MC can visit on the regular with some hassle (NOT making him an orc chieftan or the like, been there done that with the goblins). Again, assuming we get her at all.