I found one of these chucked out in the street in London W12. It worked fine for a while but has since stopped. And it needs some attention to the slider as the bottom edge has snapped off it's aluminium guider. But everything appears present (little wheels). Is there anyone out there wanting this for tender love and care - or if not able to restore

I found one of these chucked out in the street in London W12. It worked fine for a while but has since stopped. And it needs some attention to the slider as the bottom edge has snapped off it's aluminium guider. But everything appears present (little wheels). Is there anyone out there wanting this for tender love and care - or if not able to restore