I have previously bought bodies from eBay but some years ago so no idea if available now.
Two traps for the unwary:
- there are 2 versions, the older without light and a Ringfield motor chassis, the newer with light and a can motor. The bodies are different beyond the hole in the smoke box door for the light
- the body is very prone to having the bush to which the tender post screw connects being pulled out of the body if overtightened. Once that’s happened, you can bin the body. From the second hand market I’ve seen, some people do this on first assembly out of the box.