I doubt anyone would look for/see this in the marketplace, so I hope this is ok here.

I'm in need of some subs... no subway jokes please, they're all tired.

Something to match my amp is mainly what I'm looking for.

Alpine m850 (something like that)

800 watts RMS @ 2 Ohms
500 watts RMS @ 4 Ohms

Let me know what you have. Must be able to take the power, preferably 12" or 15" (any bigger, probably won't fit).

With box would be ok, but not entirely necessary.

Let me know
Matt