Everything you want is fairly cheap except the Bioshock Infinite press kit
You can find the betsy ross embroided style flag on ebay for about $40 & its better quality. With AC Black Flag Art Cell,i maybe able to help you out there,i am waiting on a package that has one included. If the bloody thing ever arrives i will let you know. My price for it maybe a little higher than normal but it will also come with the box these were distributed to gamestop in
Will let you know when it arrives & a price when it does,unless you find one sooner.