All I can say about porting and polishing is that it is very intensive. I gave up after a few hours and had the guy at the machine shop do it since he has much more experience. I'm not trying to scare anyone but if you are not patient don't start P&P ing. I unfortunatly did not take any pictures of my head but here are good pics of a 7m that is:
http://users.tpg.com.au/users/loats/...adporting.html