Hello, Wanted to let you know that you can mail those CBC's to your main toon so you can get the Kingpin contract. Theres a total of 6 to pick from and it takes 5 CBC's too purchase 1 kingpin. I check out some youtube videos and it looks like you will need a group of 2 too do these unless your geared well. I have seen a player solo these but it took a very long time to do and he/she was geared.