CATF809

This is for my boat. I presently have 2-10" W3's w/the 1200/1HD driving them. I just purchased 2-12" W6's and a 1000/1V2 amp to drive them that I will be adding to this system that also has a 900/HD driving 6-7.7's, but my question being should I switch amps so the 1200/1 would be driving the 12's and the 1000/1 driving the 10's? not totally up on the technology built into the 2 different amps. Also i have the 12's in one box now and need to separate them. Any suggestions on what boxes to buy that are ported to separate these bad boys into 2 single boxes because of the space availability problem I have?