Forgot to respond to this one:
Why would someone who's not a bodybuilder think about trying to "qualify" for national level shows? I'm missing your logic here...
BTW, if I wanted to spend 9 months out of the year not able to see below my belly button without the assistance of a mirror, I could compete "clean" at about 210 and around 4% bodyfat at 6'. Probably not gonna qualify for any national show but a level of developement you will never, ever reach without drugs and lot's of them.