For how much your spend on the correct setup it would be a he'll of a lot cheaper getting it done professionally, that is if you use the right people
there's so many factors in correct anodising people don't realise..
The whole the parts that were bubbling is the acid eating away at the material!! the mix needs to be the correct strength and ph level and also timing is everything, also the dying process needs to be done in the correct solution with the correct voltage and amp regulation, I've seen anno rub of guns before where it's not been done right, also the sealing process should be done at the right temperature.
Good luck with it but I've seen so many bad mistakes..