Hi i was going to do a blow through with 2 12"s but I just sheet metaled my bed and it looks so nicei dont want to cut it. I have room between the 2 rear fold down seats this is the room i have

side to side I have 13" height is 22" and depth at bottom is 20" at top its 16" can anyone tell me how many cubes that is so i know what im working with. I have a 1000 watt rms so was thinking 1 sa 12' or 2 sa 8" or maybe a pair of 10" sa's will 1000 watts do ok ? thanks for any help.,