Map construction in photoshop
So I'm new to this website (although I've been watching it for about a year now).
I am working on a very large map at the moment, and I am currently learning photoshop.
I am drawing on 8x12 in. paper and then scanning each page into photoshop cs6. The map size currently is 115 of these hand drawn maps that are drawn to fit perfectly next to each other.
Where  is one piece of paper, and the alignment is intentionally offset because that is how I'm doing this. I want to be able to put these hand drawn maps next to each other precisely in photoshop.
Also, please note that I have already aligned these maps precisely by hand so that when scanned in they will perfectly (or nearly so) fit into photoshop.
I am having difficulty finding any useful cs6 tutorials for my issue.
Any help you guys could provide would be greatly appreciated.