No, the rest of the BOM is not included.
Yes, you need an etherdongle to use the conductor. The conductor is a daughter-card that plugs into the etherdongle. Now days I think folks are calling them I/O shields... as "daughter" card may not be considered politically correct???
The conductor has the SMD chips mounted because mounting these is a little advanced for an average DIY person. The same goes for the compact flash socket on the conductor.
The balance of the BOM you will need to order and install yourself.