What proof is the end product?

If I figured it right (No guarantees! :-) ), about 36 proof, 18% ABV if using Everclear (190 proof) and 80 proof rum & brandy. Recipe makes about a gallon, and about 23 oz of that is pure alcohol (95% of the Everclear, and 40% of the rum & brandy, and 35% of the vanilla)