Because QGIS does not have .net SDK running Rhino.inside gets tricky. Much of the problem is related to this discussion: https://gis.stackexchange.com/questions/64479/is-it-possible-to-use-dotnet-to-show-a-qgis-map
But it does not mean it is impossible. I might first figure out if rhino.inside can be loaded thru the QMap Python interface. Although no interface would show, there might be a lot you could do with geometry and files.
I would pose a question to the rhino.inside forum here to work thru the possibilities. Our developers may have a better idea on how feasible it is.