I'm sorry I can't help unfortunately but since you did mention it I was wondering if you can suggest some novels based on the Mad Scientist, Clockpunk and Neo-Victoriana/Gothic parts of it since they sound interesting please
I know a few movies relating to the genre and a few games, but alas, didn't find many books about it ever. Maybe I didn't know what to look for.
Just a question, stuff like Riese, League of extraordinary gentlemen for movies and Rise of Legends (with the da Vinci faction), Alice: Madness Returns (with the first chapter and the epilogue) qualify as Steampunk, don't they?