All VT Cams are the same price, be it Stage I, II, III or between Blower or N/A. its up to you to decide which is right for your setup and/or goals.
IMO id go with stage II right off the bat. so what, you gotta upgrade valvesprings, ooh, theyre cheap and easy.
If youre getting blown, you need blower cams. if youre planning on staying N/A or Nitrous, you need N/A cams. N/A cams have more overlap for scavenging and you will lose boost when using a n/a cam on a boosted setup. if you use a blower cam on a n/a setup, your scavenging will suck balls since blower cams are meant to have air forced to the motor, not sucked in,and you will probably make equal or less power as stock