Peter - The dust shield took some work I seem to recall.  When fitting, I
targeted screws only where the dust shield touched down at the panel-longeron
joint.  I modified the shield to widen it to touch the longeron forward of
these screws to an inch or two behind the gas strut attach point to the
fuselage bracket (forward hinge canopy).  I cleared the instruments on the
left side a little by relieving the dust shield in a couple of spots and
re-glassing to clear.

At the header tank, the dust shield was an inch or two low.  So I added foam
pieces to the dust shield to block off this gap.  These are later trimmed out
and look fine.   Finally, I added more material to extend the dust shield
rearward to give better shading of the instruments.  Mine extends a good 5
inches rearward of the panel face at the top, tapering down to nothing at the
panel/longeron joint.  This also gives enough room to install the glare shield
lighting strips that are quite nice of flood lighting the panel at night.

Watch the clearance to your canopy.  Remember that your interior guy will want
to put some soft foam on it and extend the surface out a quarter to a half an
inch.  If the canopy hits the dust shield, it will tend to force the canopy to
sit proud to the header tank and you won't like the fit.

I recommend you make this panel fairly stiff when you get the shape right.
Consider adding some foam to get a little more section thickness.  That way
when the trim guys cover it (stretch material over it) it will be less likely
to distort.

Good luck

Ed de Chazal