I would only spell it
Gail if you intend for it to come from
Abigail.
Gale's alright if it comes from the vocabulary word. Anything else is kre8iv imo.
I prefer
Gail as a nn for
Abigail, like my aunt's name.
Gale I prefer on a boy, since it looks masculine to me.
From your combos, I like:
Gail Zandra - Prefer
Xandra, since we don't spell
Alexandra Alezandra. Prefer
Gail Alexandra or
Gail Alessandra though
Gail DominiqueGail Kendra
The rest of the mns are too masculine for a girl imo.
Miranda