All good questions,
The World is a 45,000 gross ton cruise ship. Other 45,000 gross ton cruise ships hold 1,200-1,500 people
The grain elevators next to the RG fill 60,000 - 80,000 gross ton grain ships.
A 70,000 gross ton cruise ship holds 2,000 people and 920 crew.
As far as your security concerns go I'm not sure what the problem is, Astoria deals with multiple large cruise ship landings throughout the year and those are for just a few hours. If the Astoria police force can protect Astoria I'm sure the PPD can protect us.