It's a little hard to read that recipe, but if I'm reading it right it's going be to one bitter brew - a alpha 12 hop in Magnum at the start of the boil in a beer that's 'only' 6.5ABV - you most really love your hops. It's going to smell great as well - big citrussy hops with Amarillo and Centennial
Yeah it will be one bitter brew, but I like it! You could be right, that it may be too bitter. In a couple of weeks I will find out! Amarillo is one of my favorite hops! :)