Thank you for replies.
I am applying to SF consulate and it's a 4 hours drive to the embassy from where I live. Submitting in person and collecting after a week can be very troublesome for me. Do people at medical exam center accept photocopy of passport?
I don't have ITA yet but I have a score of 446 and I am hopeful. I am just trying to start the process earlier but I don't want to start with medical.
Since you're getting it from SF - yes its gonna take 30 days from the date that they cash your money order. if you go in person to show the passport you can get it back on the very same day and they'll send your PCC when it is ready, but if you're not going in person you have no choice but to send them your application along with your original passport.
About medicals : passports are to be carried with, it is mandatory so there's no alternative to that.
but since you're waiting for an ITA, I'd say you are on the right track in terms of planning ahead and should continue with your plans.