opinions on box build!

[M82a1snake]

one trailblazer 2 seater lol, one 300a amputator iraggi alt, 2 crescendo 3kwp amps, 2 fi btl 18's fully loaded, 2 xs power d3100, one yellowtop under hood, big 3, a shit load of zero gauge wire lol. box i was gunna build is 45"W-45"D-24"H (without port or sub displacement its 21.435 cu. ft.) 1.5 inches mdf all way around (two layers of 3/4") port design i was thinkin about kinda stealin steves squareo port lol and maybe doin 15"port height 15" port width and 20" port length. so it tunes it to 32 hz. that 227 inches squared for port area. and thats 2.61 cu. ft. for port volume. btw port position is going to be subs up port back and dead center (not using surrounding box walls and its not slot port) like how steves was. so after ALLdisplacements thats 18.3 cu. ft. internally. some like a good setup and MAINLY sound like a solid box design?? because ive been told when you basically make your box a giant cube it may not sound good because of resonance blah blah blah lol but i was going to place subs obviously up fire and as close to passengers side of box as posible and port opposite side dead center facing towards hatch. so i was thinking it'd be good. whats your guys opinions on the box??