No offense, moneypit, but I don't see the picture of your 4 speed and engine bolted together going into or out of the truck. My understanding based on my own truck is that it is impossible to leave the engine and 4 speed transmission bolted together and remove it from the truck without raising the cab or cutting the crossmember. You can remove the shift tower by unbolting it from the top of the transmission but this doesn't give enough clearance in my truck.
It is possible with the 3 speed because the crossmember does not interfere.
However, it is easy to just unbolt the 4 bolts from the transmission and slide the engine right out. (Support the transmission.)