Need system advice

I've been looking at a few things on Ebay lately and was wondering if anyone has any thoughts or experiences about them.

Alpine CDA 9835

Alpine MRP-F240 4/3/2 Channel Power Amplifier

Kenwood KAC-5201 Power Amplifier


Rockford Fosgate Punch Z- 10" Subwoofer w/ Sub Zero Custom Enclosure

Any advice or reviews welcome. Thanks

That head unit is pretty nice I have a friend who has one.

What kind of front speakers will you be using? I would forget about the Rockford and get something better such as CDT, Ascendant, RE, etc. I have a similar setup as that with CDT Classic 6.5 components in front and it sounds very good.