Making my own insect repellent - request advice re: composition

I already know the active ingredient I want to use for my insect repellent: it's icaridin, which goes by a few other names. There is a place I think I can purchase it from neat. They're a small operation (called BiteBack Products) that sells it usually as a 20% icaridin emulsion in liquid paraffin but I believe liquid paraffin can be metabolised by Malassezia yeasts, right? I was hoping I could get advice as to what I could mix the icaridin with. Can I use emulsifiers such as cetearyl alcohol, glyceryl mono stearate and Tego Care (the three that BiteBack products usually use) to make an emulsion with e.g. water? It's not very soluble in water (8.6 g per litre). Perhaps I can mix it with MCT oil? I really just need a way to make it easier to spread a bit more thinly on my skin. Perhaps I could mix it with water and simply accept having to give it a good shake immediately before dispensing?

Making my own insect repellent - request advice re: composition