I have 12 levels of free level adjustment... I want to be a half-celestial pixie, capitalizing on the massize ability score boosts. I can have one more template, up to +4 level adjustment.
Q169a: Can vivacious creature be applied to a half-celestial fey? Half-celestial cand be put on an incorporeal, but vivacious can be put on any coporeal outsider or fey, among other things. Can I 'stack' the templates to work? Pixie -> Half-Celestial -> Vivacious
Q169b: If the above doesn't work, what's a good template (up to +4LA) to put on a half-celestial pixie?
Thinking of going Sorcerer or something =)