The roof profile does flatten off a little bit towards the rear and this presents a choice.
Field fittment..............unlikely to have the ability to put a 'set' in the plates where necessary to follow the roof contour.
Factory fitted................every chance the plates would have been 'set' to follow the proper roof line & clear the turret fittings by the minimum.
As Im going with a November '45 build date, and the fact that the machines were vulnerable to attack from above, going to put the set in both plates to reflect this.
Intend on using brass tube to space them correctly by eye, and dress making pins to secure them into the turret roof.
Thinking of mounting a KT headlight in the centre of the glacis, like a KT had. I reckon the one mounted on the front left mudguard would have been prone to travel destruction a lot more than one on the front armour, and this would lend itself to standardisation throughout different build models.
Taking it a step further, a Notek style hooded light would seem to be more appropriate for a night fighting machine
Im sure the I.R. hardware had very finite lifespans , so no need to wear them out unnecessarily when a Notek would provide effective driving illumination plus reduce the glare upwards.
Again, all pie-in -the-sky theory, but could be considered given the later build date & possible Eastern combat theatre
