I got a pub cylinder from the Beer Seller, Leachmere Sunderland. It was £15 (a few years ago). Bought it for my welder but after visiting the beer wholesaler it also pushed 3 88 pint kegs of Fosters out as well
Was finally empty just a couple months ago.
Your welcome to it if you can get it filled, there's a fire extinguisher guy in Cullercoats I believe who can fill it. Not sure of his name.
Come get it!
Happy days,
Steve