I managed to build the bins from totally recycled wood from Bullseye crates and wood left over from building benches (plus a few pallets). They are now the sturdiest compost bins you will ever find! I need to finish the lids and waterproof the wood (also building a leaf mulch bin but that will have to wait as I have A LOT of glass to be making!).
The wall is part of the 'gallery' space in the house and as been damp for ages now and we couldn't keep it covered with damp paint any longer.....very therapeutic hammering.