Thanks for sending that, it looks like it might possibly work. It looks like that or RenderNestedWidget can display a standalone widget when you pass it the Widget Identifier and the properties to fill the widget.
The thing I'm going to look in to is if you can have a page type with a single widget and get the properties from that to add as the properties argument in the RenderStandalone/RenderNestedWidget function
I'll let you know if I find a way and Mark your answer correct if it's possible.
Thanks!