You say you want to list a variety of records as a BIN listing, if you meant that literally then no you can't sell them in one listing with a choice, you would have to list them individually at a cost of 20c each per 30 day period.

You would lose your 30 free listings a month and would have to pay the full listing price for any items you auctioned.

I would certainly test the market using the 30 free listings first before I invested in a store.