That is certainly a lot of golf / driving! I think your game will actually hit a peak half way through the trip, and then decline as you become slightly 'golfed out'. There is a lot of walking involved, and then you have issues such as blisters to contend with- both on your feet and perhaps hands, simply due to overuse. It may well give your all round stamina a good test.
That said I wouldn't be against going on a similar trip, I hope you get the weather and that it is as enjoyable as it currently seems. Play well.