B&W 602 s2 + mirage ps 12 90 good set up for $400?

I have the opportunity to purchase a pair of b&w 602 s2's and a mirage ps-12-90 subwoofer for a total of $400. I want opinions on:
1) is it worth the $$ could I do better?
2) are they too old? Is there such a thing as too old?
3) I like to feel the bass boom in chest, will the sub be sufficient for this?
4) I do not have an enclosed space it opens up to about 24' x 12', opinions?
I have a lot of amps at my disposal: marantz, adcom, denon, krell...
Anything else that comes to mind would be greatly appreciated.

Thanks