Sub & enclosure recommended for a Ram 1500 QC?

[cougarxc2]

What's up guys, I need a little advice on sub enclosures for my truck. It's an '05 Ram 1500 Quad Cab. I honestly didn't plan on getting this truck for a while, but my parents suprised me. Long story short, my old subs in my old car will not fit without taking up the back seat. Seeing as it's a quad cab, I would like to have my backseat, so there won't be much space to work with.

Are there any decent enclosures y'all would recommend? I've heard of the "Fox Box" but I'm not so sure about the 5/8 MDF, or pretty much any other of those pre-fab MDF boxes. I'm looking to spend <$300 on this box preferably. I may run my old 06ZX1000.1, however I'm now looking at stepping up to a T1500-bd, and that will more then likely happen. I was looking at the FI SSD's, but I'm not sure if I would trust putting those in such a thin pre-fab box, nor do I know if they would fit correctly.

And lastly, any 600 or greater watt subs you guys would recommend for such a small area?

Thanks to you guys in advance if you can help me out

[RAM_Designs]

I grabbed a dual 10" sealed prefab for my '04 years ago for $100-120 at a local shop...worked fine for what it was, no leaks or anything.