In no way is this probably the best combination, but looking at those options, a 30 minute boil using the following schedule peaks my interest:
1 oz. summit @ 30 mins.
.5 oz. summit, .5 centennial @ 10 mins.
.5 oz. centennial, .5 oz. amarillo @ 5 mins.
.5 oz. centennial @ 2 mins.
.5...