Hi Robert,
as far as I know, if you want to have Shop views functionality (i.e., menu) at the same time as the Admin view, you should model a single view, mark your Areas or Pages as protected and accordingly adjust the user-group-module tables in your application database. In the Site view properties of the Shop site view, you can set the menu/landmark order of the only landmarks in that view: landmark in the Admin site view are not visible at all.
A partial solution probably is to keep the views separate, define two groups (for instance, "PublicShopper" and "AdminWithShop") associated to their respective Site Views, assign Rob Williams user to both of them, and finally implement a Change Group functionality: with this solution, you should be able switch the Shop Views functionality with Admin View ones; anyway they are not exactly accessible at the very same time.
However, I'm not definitely sure it's not possibile to have both accessible at the same time: I post this answer with the aim to spur a discussion on this topic.