realy nice idea.

as for shelf/hanger. you could have both, on one side have a ladys stocking cut open too form a fine gauze you can place buds on. and two curtain rings (screw in type) fixed on the other side with some cord too clip larger colas on.

light buds on the stocking side and, damper buds/ large colas on the cord side hanging.

have you thought about filtering incoming air, removing fine dust and rubbish. there are some pc fan filters on the market. i have a large problem with dust and rubbish coming in from the road i live on. my pc clogs every month its that bad so would hate too see inside a bud dryer in my room. would you think adding a filter would help keep drying area free from airborne dust/rubbish and not tainting any buds.

Tamzi