You could try my EZSkin script, which is being beta tested by a couple of helpful people at the moment.

It writes new SSS based shaders for your character, keeping texture, specular, bump etc., image maps.

While there are several options to exercise some control over how the shaders are built, all you really need to do is select a figure, run the script and click on the 'Do it' button :-)

PM me if you're interested?

Free stuff @ https://poser.cobrablade.net/