Following a question from a Ham Radio Australia Facebook page member I put together a very quick video showing what I have done. It is a bit rough and ready but it works.
As I only have a Ford Fiesta as transport I have to keep all my gear small. (This happens to suit me fine).
The slots in the table were made by using an Ozito Multi Function Tool and the small plunge type saw.
The mounting brackets are light guage aluminium sheet roughly cut to shape with a pair of straight shears. Being flat the plates fit easily in my little case with the radio, assorted cables, coax adapters clock etc.
Here is the video:-
I hope that this help someone by giving them a better idea or just by using this as a guide.