Your looking at 4-5 grams a plant MAX with that size if they flower. The flowering period for those plants if they will flower is probably going to varry from 7 to 9 weeks.

As to drying and clipping, you can simply use a nail clipper for the bigger leaves and get the majority off and then take some tiny precision sizzors(wtf..stoned) and clip off the rest of the leaves. Take the buds and place them on a coat hanger or a string hanging across a room using clothpins to hold them in place and hang to dry.