Banana Split Ice Cream Cake

Name: Banana Split Ice Cream Cake
Ingredients: 2 (9-ounce) packages chocolate wafer cookies; 1 cup virgin coconut oil, melted; 1/4 teaspoon kosher salt; 3/4 cup sugar; 4 large ripe bananas (about 1 1/2 pounds), cut into 2 pieces; 1/4 cup heavy cream; 5 pints vanilla ice cream, softened at room temperature 10 minutes, divided; 1 3/4 cups maraschino cherries (from two 10-ounce jars), drained, patted dry, stems removed, plus more with stems for serving; 2 1/4 teaspoons powdered unflavored gelatin (from one 1/4-ounce envelope); 1/2 cup sugar; 3 cups heavy cream; 1/3 cup salted, roasted peanuts, coarsely chopped; A 9 springform pan