I dont think you can put on a
invacom on a superdish and expect to get everything. I mean you are entering into an experimental realm here that I personally don't know about. For example I don't know whether you will be able to receive FTA+ dishnet when the lnb is positioned in the center of the superdish. The super dish and it's lnb holders are precisely designed to pick up 119+110+121.
The best way to do what you want to do is get a motor+ a 76cm or larger ku dish + an invacom circular/linear lnb or you can get a regular linear lnb and strap a circular one on to the linear lnb.
This way you can surf every darn satellite imaginable within your area's reach in the Ku band.