Aha, thought they were different all right. They look better than the Silver Fox ones to me. I wonder is the Silver Fox ones to scale, or made to suit the wheelbase of the donor bogies? Sorry for dragging your thread off topic.
Lifting rings, would these be of use? HO for US diesels, but at this size scale would be negligible http://www.ebay.com/itm/Detail-Associates-HO-1101-Lift-Rings-18-/230851345358
I have bought plenty off this Ebay shop in the past, very good service.