I disagree with "If you have drafting skills, paper and pencil plus physical model building is likely to be the most efficient approach". See Homestyler (recom

I disagree with "If you have drafting skills, paper and pencil plus physical model building is likely to be the most efficient approach". See Homestyler (recommended below) and other programs, with a gentle learning curve. I have limited drafting skills (did some of the initial courses for civil engineering), but the current easy-to-use programs are miles beyond what I'd get trying to draw or model myself. That said, if this is going to be really long-term, I agree with your suggestion of hiring someone.