lol, yeah see that issue, I get. I am currently writing Steampunk and totally overwhelmed by it! It is especially hard when you are using a friend to help you, and he happens to be so into the actual construction of the inventions, and you are given just so much detail about how something could work, and then you go away and are all, "But I can't possibly write all that considering my POV etc."
Everyone has given excellent advice. First read some Steampunk to see how it is done. And then realise that one detail or two is more than enough to establish the mood. Let the designers worry about it when it becomes a movie. Too many details in a book is just going to confuse your readers.
Good luck! I know how tough it is. I'm still struggling through it, oy.