Neem cake and crustacean meal(crab/shrimp meal) are both great additives! I like Alfalfa meal too…especially if you plan on reusing the soil! I use rabbit poop as well…it’s the only shit from a animal that does not need composting(ready to use)and has more available nutrients than any other!! I’d also add in Epsom Salt(Magnesium Sulfate)
Your soil recipe is very similar recipe to what Buildasoil.com has available…it’s a good one!
At 1/3 by volume compost might be a bit heavy you’d probably be just fine at 1/4 of compost.
Peat moss is a good soilless material though I prefer coco or a mix of the two.
Alaskagrown
EDIT: If you still want to use Bone Meal I’d use Fish Bone Meal…Just a better quality product all the way around!