The only remaining problem was sourcing some brass bar 1mm by 2mm. North yard couldn't help, nor could the ubiquitous KS stand. however they did have some 1/16" square tube which I figured might do the job.
Wrong. it was too thick.
However all was not lost, I just set the hammer on it which solved the problem nicely, as well as letting out some pent up aggression (I don't play sport any more).
I also added in some PCB sleepers behind it just to add to the stiffening.
And before you ask, yes, I will be cutting electrical breaks in it, just after it has been glued down.