Off the top of my head
Craven Cottage (permanant home)
The Valley (new permanant home)
The Stoop (new permanant home)
Griffin Park (new permanant home)
Chiswick Poly (new permanant home)
Barnet Copthall (new permanant home)
Crystal Palace (new permanant home)
Hendon (new permanant home)
One Offs
Aberavon
Stamford Bridge
Wealdstone
I suspect the Kent Invicta thing being thought of was Southend Invicta.
That proves how much of a joke it is down there and they still have to rent and share a stadium under a RU name to survive.