Im pretty sure its a straight forward bolt up,
I was looking at doing it on my VT before i smashed it lol, and pretty much was told by holden it isnt possible, but after a few panelbeaters told me its is as straight forward as just putting the other panels/parts on, I was keen to do it..
You need the gaurds, bonnet, bumper bar, reo bar - (I think its a bit different shaped?) and the black/grey plastic at the base of the windscreen.. where the windscreen wipers are.. and the bumper clips - plastic strips that the bumper clips into,
I could be wrong, but I have been told this on a few occaisions,
I'd go the VZ SS fluted gaurds and SS front bar, VY, or even go the full VZ front conversion?
There might be one or two bolts that dont completely line up, but with a drill bit and a speed nut or two, nothing that couldnt be achieved - quite easily..
Pretty sure its the same chassis, and most likely the same radiator support, so.. worth a look at imo..