I have the 1940's version and the factory x version. Selling both on ebay soon (cash in on the movie hype)
Had the factory x one one the wall for years, looks amazing but sadly all good things must come to an end.
I have this item, can I ask what price you are looking at. Ive seen auctions listing this at over £400
https://www.ebay.co.uk/itm/Sideshow-Rosebox-Shotgun-Replica-1-1-Terminator-2-NEU-NEW-/330887146328
https://www.avforums.com/threads/t2-rosebox-shotgun-1-1-static-replica-from-sideshow.1792512/