Welcome to the forum wayne.
Start with this very informative thread http://filipinaroses.com/showthread....Fiance(e)-Visa
The age is not an issue now as the rule for not being allowed to apply before the age of 21 has been overturned.
The salary is not so much an issue, as long as you can show you can support her when she is here. There may be rules put in place soon about minimum salary but no definite plans or dates have been announced yet.