TBH mate, I think spraying is not as good as a good powder coating, the secret I feel is the sand blasting to get to the good solid surface, it will be hard work hand sanding and filling, eventually it will bubble again, I had the wifes wheels powdercoated a year and a half ago, still perfect with not one chip mark.
The wheels on my r27 were pro painted and they are chipping (all be it fairly small) and round the ctrs to the badges are beginning to bubble slightly, it will be power coating for me when I change the tyres.