I agree with dialing down the coconut oil down a little bit. With castor oil, i usually stay in the 5-7 range, anything more than that and it gets sort of sticky for me;however, it is really humid where i am, so maybe that's the culprit
To me, the recipe looks pretty nice 'as-is', and I say 'go for it'! Of course, I only say that because the fatty acid profile of your recipe is actually very similar to one of my main formulas. For what its worth, I superfat it at 7% and it's very nice, not drying to me at all.