I've done a few.
I'd get a FSM to double-check, but here goes from memory:
Drain all fluids and remove the cover, converter bolts, starter, braces.
Remove bumper, grille, radiator, panels on either side.
Remove all hoses, belts and lines.
Lay aside the PS pump, remove the Alt and A/C if equipped. There is not enough room the lay the A/C aside well.
pull the crank pulley. Remove the carb, dist. and anything else on the manifold.

Jack up the front end of the van and use good jack stands so that the boom of the engine hoist is level with the carb flange on the intake. This is important. You need the hoist to be fairly short and the arm must be darn near flat against the carb flange. There is just enough room for the arm to clear the front of the doghouse if it's right against the intake, so the oil pan will clear.

I have never tried pulling the pan and pump off prior to removal, because I HATE installing pans in the vehicle and figured it's easier to get it all right on the way out so it goes back the same way.