Well two 10's obviously have more cone area than one 12" but ported usually has more output than sealed so it would probably be about the same. I'm leaning towards two 10"s tho.
Then 1 10 in 1.27 tuned in the high 30s if you want lows good luck I hated that truck for lows. I ended up with 2 morel ultimo 10s in mine on an arc se 2300 but it wasnt really loud output just really really clean sounding