Thanks for the photos Chopper. The mock up must be about a decade old now, I wonder how well it is fared after being assembled, disassembled and shipped around the world over the years.
I recall when it was presented for the first time at Quad A. The mock-up and demonstrator aircraft reused Bell 525 collective and cyclic control assemblies. In the rush to get it completed, they forgot to add in a pylon angle control switch to the collective grips (silver coloured thumb wheel on top of grip). I was told not to worry that no one would notice other than Bell pilots. You can see the switch added to the 525 collective grips in your photo.
V280 mockup collective grip