(05 May 2023, 7:04 pm)toward6931 wrote might find a couple of usable tanks in the cannibalisation process...........
I don't know 100% but I could imagine the tanks would need to be done by a specialist. Not sure it's worth replacing them with ones with a year left as the cost will be just as bad.
Can't imagine anyone can just go replacing them nilly willy. They're pretty much a bomb on the roof anyway ignoring the safety systems but they convert them into a flamethrower instead. See: https://www.youtube.com/watch?v=vHf2o9oVY24
They're the same tanks as Darlington's aswell unless they've been upgraded at some point.