*I think SL had one turn where uploaded+ unloaded the same unit at the same turn. if this is possible then yes 6 turns else 7. (or I have overlooked some nifty trick
)*
Edit: above statement is wrong and 6 turns the right answer.
Edit: A NO from me to your second questions but thats just me the one who thinks that there have been already far to many hints, tipps and warnings from lurkers in this game.

Edit: above statement is wrong and 6 turns the right answer.
Edit: A NO from me to your second questions but thats just me the one who thinks that there have been already far to many hints, tipps and warnings from lurkers in this game.