Pre-loved double bed still excellent after all these years (Kirkby Lonsdale LA6)

We're just dismantling our bed to get it down a cottage staircase, thinking it will have to go to the tip as we no longer need it. But although 36 years old and naturally stained around the edges, it was such a good bed, the mattress too, that it seems a tragedy to tip it when someone may have a need for the good deal of life and comfort left in it. It comes from a non smoking, clean household. The base was designed to fold for moving but we had to cut the 2 sections apart to get it originally up to our bedroom and then stitched and made good the join afterwards to make it sound. The photos show as much detail as I can add here. Anyone with a van and hands to lift it out and put it back together will save a good nights sleep from the tip.