You will need to at least need to split it into two sections...front cylinders are one bank, rear cylinders are the other bank. Once you pull the choke assembly and fuel lines, it will become easier and more obvious. There is a carb rebuild sticky that you can follow...6 threads I believe. VERY informative and great pics to follow.
Also, if you are doing a COMPLETE cleaning and rebuild, you will need to separate all four carbs. The trick there is to mark each one with a sharpy marker so you know which carb is which. I personally use four separate bins to keep all carbs and their respective parts together. Just realize that the carb cleaner will remove the sharpie mark, so pay attention...LOL
Overall, this is not as scary as it seems. TAKE YOUR TIME, keep everything together in a CLEAN location, and follow the sticky threads in the carb section.