Those oils sound interesting, thanks willowmina moon (like the name!). I certainly hadn't thought about rosehip oil.

I do hear good things about the results from castor oil, and I used a tester of hairveda sitrinillah which has it in and liked it. But then I heard about how it can be problematic with CG. I think it is something I might well try again in the future when I can lo poo a bit more, but for now I'm treading carefully because my hair is really breaking after highlights went wrong. Certainly like the sound of curling more.
UK based wavy

Mostly waves, but curls and straight bits too!
Fine to medium, high porosity, medium density, very low elasticity
Highlights damage (growing it out), seems to like protein and need lots of moisture.

Cleanse - CJDF, trying out low poos ; Co wash- Uk chemist brands, Urtekram Rose or Aloe, Hairveda Amala Cream Rinse; RO - varies, Tigi Moisture Maniac, Desert Essence Coconut ; Leave in - Keracare natural textures; Sealant - argan oil
Trying out new things, still looking.