Boston Cream Crepe Cake

Name: Boston Cream Crepe Cake
Ingredients: Crepes:; 2 cups flour; 3 eggs; 2/3 cup milk; 1/4 cup veggie oil; 1 tsp baking soda; 4 tbs sugar; 1/2 tsp salt; 3 to 3 1/2 cups of boiling water*; Consistency should be like melted ice cream!!; Custard:; 1 cup of whole milk; 2/3 cup of heavy cream; 2/3 cup granulated sugar; Pinch of salt; 4 large egg yolks; 3 tablespoons flour; 4 tablespoons unsalted butter; 1 1/2 teaspoons vanilla extract; Ganache:; 4 ounces semisweet chocolate; 1/2 cup heavy cream (boiling)