Thanks, you guys came through again as I knew you would!! I found a ton of info searching with terms 'modular homes' and 'manufactured homes.' I've also seen the tv shows that tour the factory, Lisa. I'm not sure if it was This Old House, but it really got me interested in these homes. Teacherbailey, set choices will definitely help me, too!! Plus, it looks like if you do want to use a different product that you can easily work with them to do that.
Thanks everyone!