The small one on the left next to the Shop Vac
I get mine from a local specialised black plastic bag shop
They might as well leave on the ones from the shop
there are these folk, with an online shop www.picadoreng.co.uk Good luck.
I'd only shop there if I was feeling a bit flush....
https://www.toolstation.com/shop/Plumbing/d20/Compression/sd2697/Brass+Hexagon+Bush/p98490
A post shoe and rawlbolts for me https://www.toolstation.com/shop/p58942
https://www.toolstation.com/shop/Plumbing/d20/Plumbing+Consumables/sd2711/Plumbers+Grease/p34053
Go to a sewing shop. Tracing paper. Sold by the yard.
Go to the nearest big city wreaker/ salvage shop -- mike hide