Commercially they don't "pick" them, they cut off the bine at the base and then send it through a machine to strip the cones, so in principle you could do that with yours, untangle the bines and then keepthe cones separate?
Commercial brewers I know work on 7:1 ratio, ie using 7oz green hops in place of 1 oz dried hops. The beers are great, they're the main reason it's worth the hassle of growing hops, as there's all sorts of aroma compounds that are normally lost in drying. So use them primarily in the whirlpool and as dry hops.
But you have to be quick - the guys I talk to reckon that you only have 4 hours from bine to wort to catch the hops at their best, anything more than 12 hours is a waste of time and you would have been better off drying them. So you'll get brewers putting the copper on to boil, and then going to the farm to pick up the hops.