the order in which you say to build a motor ends up being a very costly way to build it. i understand where you are coming from but with the way people love to rev to 9000rpm, i would recommend upgrading valve springs/retainers etc when you do your first cam swap because its always better to be safe than sorry. also the majority of valves in modern cars already run 3 angle valve grinds. these days go for a 5 or even 7 angle valve grind and you will make some good power with a good port job and match porting the head with the manifolds.

in regards to your question about bumping up compression ratio, the 0.5 in ratio can be achieved simply by shaving the cylinder head (remember to always check piston to valve clearances) when you go to fit non standard camshafts. also look into the adjustable vct gears instead of 'fixed' adjustable cam gears. this allows you to further shift your power and torque curves when combined with a good aftermarket computer (i recommend using haltech ep3r plug'n'play computer)