You will never do 60 to a 100 an hour. More like 40 a hour.
skip the inkjets and and lasers and get a Canon Selphy
Canon Selphy Compact Photo Printer (CP900) - Black : Photo Printers - Future Shop . The down sides are it only holds 18 sheets and the ink only lasts for 36 prints. Put you can change it on the fly.
If you want something high end it's going to be $1000 plus but will be 300 to 700 pictures without changing anything and will print in under 15 seconds.