Ah, then get on your local version of a giving-stuff-away platform, and just start! It might take a couple of years to complete, but if you just start, it's easy to keep going.
@Badgardener well you’ve inspired me and I will do so!
A greenhouse is what I’m desperate for, I raise over a thousand plants from seed every year for my vegetable garden, having a walk in greenhouse would make a significant difference, and it would extend my growing season too.
I've 'rescued' a bunch of greenhouses, mainly to pass on to others, and they've never cost me a penny. They're mostly aluminium framed, which doesn't really rot, and although they need new fixings and clips, these are extremely cheap. Beware the glassless ones, though - buying the individual panes can become really expensive. Best to carefully recycle the ones in place.