I can only comment by eye. But I will say that, thats a good choice in airfoil. From an aerodynamcis point of view you clearly know a lot more than me. But just by eye the stab does look quite big for the boom length, and the elevator very small. But if a trusted calculator says thats right, then Id imadgine it would be.
I hope someone more knowledgeable can help you out here. Please do keep us posted on the build, if love to see it