Thanks - great tip. My Father worries about the (dealer-fitted) rack with a spare wheel on top obscuring the third brake light on our flatback 4/4 Sport.
Since neither of us likes the 'periscope' third brake light fitted as standard to spare-wheel trads (which in any case would not be tall enough for our application) this gives us a super alternative. I'm not sure we have your fabrication skills though, so off to the blacksmith to get the bracket made...