That's tight, if you're going to stay with kicker though, I personally would run a shit ton of L5's lol. Since it's a comp/demo/daily car, I'd try and up the cone area as much as possible, it'd create more pressure sealed up and move more air when you wanna demo... but it's all personal preference in equiptment and you should just run the L7's if they're your fancy. From personal experience though, I enjoy the L5 on music more than the L7...
Although I'm not sure why