Since you will be left holding the stock, you still have no guarantee the stock will not decline before you are able to liquidate it.
Insufficient plan detail to determine what a real loss could be, as you are still holding a long stock position. If you are assigned before the close, and are able to quickly liquidate your position, you may get out with a loss similar to your calculation + commissions, slippage, and assignment fee.
Yes, I think that was a perfect answer. I will just assume that the stock doesn't decline for the example. Sometimes it might go up, sometimes down. I think if a sold call is exercised and I don't own any shares, I would be in a short stock position and not long?