I am looking to replace my now broken (but very light... ok too light) aluminum frame. Most of my riding is spent in the mountains so I would like a replacement frame that is also light. Here is the catch, I have two kids in private school so I'm trying to replace this for under $1,000. Back to the point, I am looking at a slightly used Look kg 181 frame and fork. Does anyone know the weight of this frame and/or have any other comments? If price was no object I would simply buy a Trek 5900 or a Colango C-40. Maybe when I'm 55 and all the kids are done with school!