cheezz, just a note on the Mexican Chocolate Icebox Cake - For the past few times,
I replaced 2 Tbsp of the butter with 2 Tbsp cream cheese, and I like it better - it comes out creamier. Some reviewers replaced all of the butter with cream cheese, but I didn't want to do that - I thought it would be too cheesecakey and compromise the taste.
Also, I've been doing two 9-inch sponge cake layers instead of the ladyfingers. I brush them with lots of milk, since sponge cake is generally so dry (can't use liqueur, and a simple syrup would be too sweet for me). It makes a much taller, thicker cake, but of course doesn't have that beautiful crown look, as with the ladyfingers.
I like your idea of combining the two recipes - using the filling and topping from the Mexican chocolate icebox cake, and the graham cracker crust, strawberries and chocolate ganache drizzle from the strawberry cake. Whatever you do, don't leave out the cinnamon from the Mexican Chocolate Icebox Cake! I tried it once, and it fell flat - the cinnamon really makes it, although, I do use a mild cinnamon (Penzey's Korintje).
Have you ever made the Mexican Chocolate Icebox Cake before?