I bought the fittings and made the hoses myself, but I have the special crimper. If you don't have a crimper and don't want to invest in one, I recommend http://rayeveritt.com/Parts/Hoses/Hoses.html for hoses. You just figure out what you need and they will make it up.

At 80 degrees ambient, with the car idling in my driveway and a thermometer in the center vent, the temperature of the air coming out starts to drop within 15 seconds. The car begins to cool immediately but ultimately how fast the car reaches the desired temperature is primarily a function of vehicle speed (air across the condenser) and engine speed (compressor rpm).