my 6.5's ..are they enough?

[Glock29 0]

Guys I know just enough to get into trouble and looking for some advise. I've got 2 Fi btl n2 15's that are going to be sealed off from the trunk with a blow thru in the rear deck. Each sub is going to be ran at 1ohm with a Rockford t1500-bdcp amp. I've got 4 sets of Rockford T3 6.5" components and plan on running one set on each channel of my Rockford t800-4bdcp. My question is this..what freq should I cut the subs off at..where should my components pick up at..and are my components enough? Will they be loud enough? Will they go low enough? Thanks for any help you can offer.