Winchester 12 Gauge Shotgun

Good trusty old single barrel. Action locks up tight and firing pin will send a 20c piece up to the ceiling. Barrel was sanded back and coated in black engine enamel when I was a teenager. There is stabilized surface rust on the outside surface of the action. I also have a spare spacer to go with it that is for between the forend timber and the action although there is nothing wrong with the one that is fitted. No pitting in the barrel and is still shiny. I've had it for 40 years but the 10 firearm rule is forcing me to move it on. Buyer to transport and their own dealer fees. ( I have used a photo off the internet as well as my own as mine can't show the full length) Contact through app or [removed]