Removing fairing from aluminum hull

[dohenyboy]

I have an older aluminum sailboat, with an overhung stern. The fairing is coming off in big pieces and is coming off as well at the bow due to the wave pounding. I am thinking about removing all the fairing above the waterline? (Soda blasting?)
How hard is it or in other words how much time and money? or am I better served just trying to repair the fairing and hope my problem does not return?
Is there going to be a problem leaving the fairing below the waterline?
Its not a very fair job overall. The deck is atrocious...

[model 10]

I think you will need something more aggressive than soda. Walnut shells or sand. I hope you won't be doing any sandblasting near me.