Hi Tom. Concentrate on the linkage connections, the parts which attach to the VB and how they let go when the VB comes off. The electrical connectors are usually no issue to remove or remember how to reattach.
I don't think there is anything to have pop off, but let the VB down without tipping it sideways, and carefully look for the tiny valves/springs that on most Fords compress between the VB and the case. There are typically two of those, side by side, and not interchangeable. So you lower the VB, and carefully locate those types of items, noting how they are oriented, make sure they aren't hanging/sticking up in the case and could fall out. Make sure nothing is left hanging or stuck up inside the trans case, that's a regular item to do when dropping any VB.
Those are the basic items to do when dropping the VB. The biggest thing to do is be very careful with removing every part from the VB that the instructions require. Go gently, and constantly look out for the possibility of parts popping out. There are springs behind almost everything in the VB, so get a good grip of every part and tool, don't slip and let something get away. Finding those tiny parts is hard, and figuring out where they go after the fact is super tough. You can save yourself a lot of time by being patient and not having anything get away from you. Regards,