The comb came with Styling Pinkie the G3.5 version.
The fakie I would say $2-3 - I think they have recently been spotted in stores again - perhaps not the painted versions but the same mould. I think they are about $1 new so only because she is a little different elevates her price slightly.
The G3 is Sunnydaze - she was an exclusive pony available through the Avon catalogue. She doesnt show up for sale too often but I dont think she is overly sought after. Maybe in the $8-10 category just because she can be quite hard to find.