More than one page onepage theme

There doesn’t seem to be a theme out there that suits my purposes – I’m looking for a ‘onepage’ style theme, but I need to have more than one page of it. To try and explain, I look at onepage themes as though each single ‘section’ is a page in its own right, but encased within a ‘master’ page that scrolls all its ‘subpages’. That’s great, but I need to have a second (and a third) ‘master’ page, each containing their own set of ‘subpages’.
Most of the themes I’ve looked at (like Parallax One, for example) do also have a blog page that doesn’t open within the ‘master’ page, but that page doesn’t contain the framework of the master that allows you to add other new ‘sections’. I’m currently trying to make it work by using a framework theme and creating all three ‘master’ pages with each subpage being a discreet div within them, but it’s rather clunky and my CSS skills ain’t really up to the job! Is there a theme I’ve missed that can handle this, or is there another solution anyone can think of? Any help gratefully received!