I am the first owner and have kept it very carefully. Not a single scratch or mark on the body or the glass.
Its a beautiful lens that I would have otherwise kept, but its not finding enough use as I have ample of other lenses keeping me busy.
Only used it a handful of times. Very sharp lens with beautiful image contrast.
Prices below:
Sigma 150-600mm C lens - $1100 (comes with a sturdy bag)
Sigma 105mm WR protector - $150 (retails for $400)
Sigma USB dock - $50
Can sell everything together for $1200.
Pickup Homebush NSW, or can post at buyer's expense.
Images here:
https://imgur.com/a/uJXUYO7