Hi Alwin and all,
Every Garratt fancier would LOVE one of Giles' superb creations (and the little narrow-gauge loco in the background of that first photo is also delectable. Both are also fully worthy of
As for signals, everything else on the track learnt the hard way to stay out of the way of these beasts- even if they weren't parked correctly. See the Geurie collision https://en.wikipedia.org/wiki/Geurie_crossing_loop_collision
As for the earliest ones K1 and K2 from Tasmania. Yes they could see the signals clearly from the cab but the placement of the rear cylinders under the cab floor reportedly led to some unpleasant working conditions, even in the coolest of the Australian states. I don't know if this problem had been sorted when they had it running in the UK in recent years.
Unanderra in oz