Check out the sponsor section. I think this very same question was asked about two months ago and several folks spoke up with suggestions.
Additionally, 3Rivers has their custom arrow software now on their website. Not sure if crown dipping is part of that.
You can also get custom arrow wraps from Onestringer. I have been working with Mindy but will have to wait to order until after my daughter's wedding in August.
I have magnus working on some custom woodies for me. I ordered some specific shafts and are having them shipped to him for finishing.
Good luck. I'm sure you will find someone.