I summon this thread to rise from the grave!
Ahem.
While looking for some unrelated miniatures information, I stumbled across an offering of a metal and resin Stingray kit in 1/48th scale (should be an acceptable, albeit not perfect, fit with 25mm/28mm miniatures):
http://www.hlbs.co.uk/product.php?id=725
Take note of the paint scheme.
- C.