And he is so cool!
I was thinking about this combo in a cleric 2/ sorc 10 build for my next run through when I realized I could play around with it and my companions. The respec even lets you re-assign ability points so I could make Gale charisma based instead of intelligence (which feels more right to tell you the truth).
I also didn't have any heavy armor users in my party, and being able to deck Gale out in all that stuff seemed like fun. Hes now running around in full plate, flying about during combat, dropping the occasional healing word if necessary, and nuking the living daylights out of the bad guys with lightning bolt upcast and all damaged maximized. Because hes in heavy armor I didn't need to bump Dex for armor class and was able to focus heavily on charisma and constitution. At sorc 4 picked up the Actor feat to get Cha to 18 and pick up a few more charisma based skills.
I think of him as my full metal mage.