The Aspire Nautilus comes with an extra tank. What parts do I need to make it work?

I'm looking at the accessories page here: I know I need the Upper Hardware and the Nautilus Base Hardware. I know I need a Drip Tip.

I do not know if I need the Nautilus Seal Ring for Upper Hardware, the Nautilus Rubber Seal gasket or the Nautilus Connector and Insulated Ring. I assume the Nautilus Spring and Pin for Airflow control will already be inside the new Nautilus Base Hardware I'm ordering so i won't need to buy this extra. Is this correct or will I still need any of these to make another complete working take? ( I already have toe 1.6 ohm atomizers) Thank you!
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