Hoping I can describe this clearly...

I'm trying to set up a glossy/blinn blend (which I often use with an alpha on the lips material) on the eyelid region of a texture. At the moment the overall facial specular is a blinn which will be modified by a specular map. Painting the required alphas for the shader is the easy part, figuring out the rest and their input order is proving difficult. I'm thinking it's similar in part to a makeup overlay. Anyone have any suggestions how I would go about creating such a set up? Illustrations would be very helpful.

(Whispers a prayer to the shader gods)