your '01 WS6 is only getting more rare by the day, i hope you don't plan on selling it.
regarding the 5th gens, just a few notes from what i've seen:
2010 - 2011 SS Camaros have been a bit more prone to oil pump failure, it's not too often but scary enough to read that makes me want to upgrade regardless
My 2010 was TERRIBLE with paint chipping, but my 2015 has been good so far.
Just in case you don't know: auto SS models have the "L99" motor vs. the manual which has the LS3. The L99 has cylinder shut off and has about -20hp less than the LS3
500WHP is pretty easily achievable with bolt ons +cam
that's what i can think off of the top of my head. How about some pics of the WS6! Here is a pic of my pride & Joy:
