Good News!!!!!!
Been locked in the dungeon with it since 7pm.
Hit it with a Rotary, Various spot pads and Menzerna Polishes.
Broke out the 2500 and 3000grit and grew a massive pair of balls.
Flatted it back as much as I dared and brought it back with polishing pads and compounds.
Good news is that it doesn't look more than a big scratch from a bush. Still not finished but I'm not 100% well so will have another go soon enough.
On the flip side I've never wet sanded more than a paint chip before and this was a massive experience/benefit.