So after learning the basics and really wanting to try this, I have come up with the following recipe to start with.
Coconut oil: 35%
Sunflower oil: 35%
Olive oil: 20%
Castor oil: 10%
Soap Calc gives the following:
Hardness: 42
Cleaning: 35
Conditioning: 57
Bubbly: 44
Creamy: 16
Iodine: 73...