On the right track. Alpine Type R's are decent subs and they will take some abuse. All of the subs are in the same ballpark, but if you're looking for a great sounding system, I suggest: getting two 12" type R's, find a decent 1000 watt RMS amp, have someone here build you a nice ported box, and upgrade your electrical system to handle the wattage.
Believe me, I've owned every cheap piece of shit brand out there. I've learned a lot about car audio, but I guarantee you none of my cheap sounding shit lasted more than 3 months in my car before I had to upgrade.
Some final advice: this is the absolute worst place to ask for advice to build a $200 system with two 15 Pyles and a 2000 watt max lanzer amp. Half of the people on here have $1000+ systems and they love the fact that they have nice sounding shit.