I am building a website for a town chamber with a businesses focus and the other a visitors focus. They will have very different and separate themes/menu's and will be accessed through a clean portal home page. They will also share other content such as: widgets, events, media, connections (a plugin), plugin data, login, ETC.
I don’t want a multi-site install but I don’t know how to accomplish my goals.
Each areas will have shared data but I’d like each 'portal' to have a unique theme and menu.
Initially I was going to apply a unique theme based on categories but that doesn’t accomplish the menu issue.
Your advice would be very appreciated!