Poured-in-place bronze bushes?

[SteveG]

I've definitely got a piece of cast bronze bush stock here with 53mm OD, 22 ID - about 300mm long. It might need to lose a mm or so to true up the outside diameter so might end up too small for you. No idea what spec bronze but from memory it was from the odds and sods bin at one of my local bearing suppliers.
Let me know once you've got closer measurements and I'll see what else I can find.

Steve