I am intrigued by the prevalence of what I call a "builder's impulse" in so many people. Perhaps this gives us a tangible experience of the style we choose and our abilities to pull it all together. Often there's a history of building we are exposed to and seek to continue. As a designer one of my roles is to facilitate this impulse. If you have "builder's impulse", try to use and engage resources to make your project the best it can be. I've added a link to Suite 101 where a web-based course in remodeling floor plans is available to test out your ideas and create the space you imagine. See
free lessons in remodeling floor plans.Reaching your final goal will involve a variety of resources and collaborations. Leave your questions as a comment.