Get the JBLs if you can give them at least rated RMS. They sound nice at unbridged power on my Eclipse 36501, but I can tell they want more. If you want something that's geared more towards SQ, go for the MS. If you want something a little more punchy and rock-friendly, I recommend the P660c. And that's if you want to stay JBL. Otherwise, PHD by all means...you can't go wrong either way.
Enjoy the truck's natural sound (the engine) for a bit. When you and your budget are ready to get started, have a blast.