that sounds good to me. I opt for pictures over hand drawn wiring diagrams now that "digital film" is so inexpensive. ;)
James' advice to check each battery individually is good advice especially since you have a lot invested in them. If they are not yet shipped I would ask the shop to test them and provide data for each battery. If you have a multi meter I would check voltage and polarity as you go about connecting the cells. Just a dummy check that might save you from a lot of heartache if the wires get crossed.