need help on a bandpass box for 2 12''s please anyone!!!!!

[bigblackchevy08]

i got 2 lanzar max pro subs 3200 watt peak 1600 awtt rms i have jl 1000 watt mono amp(willing to get rid of) could some one design me box please it calls for a 1.25cu.ft. + port 2.75x9.5'' port 17.75 inches long if you need any more detail let me know i dont know what the hz to cu are tho

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