You may find this a more daunting project than you imagine. There will be a lot of designing involved in order to use the fabrics from old clothes - they may not lend themselves well to quilting. Many will probably have to have interfacing, the pattern should not be little pieces but bigger blocks to show the pieces. Not a project I would be willing to do for someone. But then I won't quilt for others - I don't want to work with someone else's choice of pattern, fabrics, or on their timeline! If I were to make something like this I would probably charge $300 or more - the time you will spend doing this project will be more than you think it will be.