If anybody out there knows of a fluid pan numerical torque sequence diagram for a 4T65E, I would be extremely grateful.

I may be mistaken, but I don't think it has a sequence like head bolts. I start with one in each corner to hold the pan up, then from one corner work my way round one bolt at a time. I start at half torque, then repeat at full torque. If it is a cork gasket, I re-torque in a couple of weeks to offset gasket compression.

Of course, I could be wrong, in which case someone else may chime in.

I do it similar to lug nuts. Start at the corners to hold the dang thing up, then cris-cross.