We just finished playing the starter kit, Mines of Phandelver. We want to start using Roll 20 because we had issues trying to get our group together on a regular basis. I have a basic account and we are looking to play Curse of Strahd. What things do I need to buy in the market place to get started as the DM? Do I need more than just a basic account? Do I only need the Curse of Strahd Roll 20 book or... Do we need a Player handbook to build character or can I use the print version I own? Do we need the DM guide and Monster Manual or can I use the print versions own? Thanks for the help.