Thanks for your thoughts.
Here is some more background. Originally, The ship was to arrive in port at 8:00am and depart at 6pm. Back in January, I noticed that there was a 'transportation only' shore excursion to Granada offered ($85 pp) which I purchased. The 'fine print' for the shore excursion suggested that, for those interested in touring Alhambra on their own, that we would have to buy Alhambra tickets ourselves and suggested that a "timed entry" be purchased between 11:30am and 12:30pm. I purchased Alhambra tickets for noon entry (€ 22pp). I even reserved a 3-hour private tour guide for €150 to make the most efficient use of our time. Perfect! My wife and I were all set!
Unfortunately, the cruise ship company recently changed the itinerary and now the ship arrives at noon and departs at 10pm. The shore excursion was refunded but transportation to Granada is no longer offered. Our tickets to Alhambra cannot be refunded (sunk cost).
I checked the possibility of a private driver but a trip there and a trip back turned out to be a total of €400 (plus tip). I checked the bus option each way but I wasn't comfortable with the timing of the return. So, I thought taking a bus there and a private driver back might work. Yes. I can still purchase Alhambra tickets for the date I need.
With the ship arriving at noon, I was hoping to catch the 1pm bus direct to Granada arriving at 2:45pm. I figured that, if I bought tickets for entry at 4:00pm we could take a 3 hour tour and head back to the ship with a private driver at 7pm arriving at 8:45pm (enough time to make it back by the 10pm departure).
The next bus leaves Malaga at 2pm, arriving at 3:45pm. That timing is just too tight for me. We'd be sprinting through the palace.
Getting to the bus station from the cruise ship for a 1pm departure is the most important piece (hence, my question). If that is too tight, I'm left with a private driver both ways which is way too much for me. Even using a driver for only for the return trip is pushing my cost/ benefit tolerance for what would be a rush visit to Alhambra with seeing no other sights in Granada. I'm starting to think I need to 'wave the white flag' for Alhambra and take a "You Tube video" tour.
Thanks for your comments.
Tom