Kool, i think that the 15" l7 or CVX whatever you get should sounds pretty amazing and that Kenwood amp should power them pretty nice and its pretty cheap, i had it on a L5 and it sounded loud for sure, but if you get a l7 or cvx i think should be good as well, but youll be underpowering them a lil but it should be loud, you do the choice.
later, em