Just an update.
Replaced water pump as the impeller was just about worn down.
Also had the radiator done as well.
Doing the water pump had the most improvement.
The radiator guy claims that there was not much gunk in it.
Not sure about radiator man through.
But quite happy with the results.
So in the end replaced hoses,water pump,and cleaned radiator installed new thermostat and radiator cap.
And installed a shroud.
Stinking hot day and maintains it temperature.
All and all job done.
But I might buy a new radiator a brass copper one.
Thanks for all your advice and help.

Cheers Kiwivan