Re: Monon gondola spiral ends - the Shops
Paul is correct that the Shops was the name of Chad's Monon model business. As a Monon modeler myself, I benefited a great deal from his creativity and I have too many of his kits to count. Chad did offer the spiral ends to retrofit the Intermountain USRA gon. I have a few pairs, but the part was rather thick as a resin casting. After seeing Jack Burgess's clinic at Naperville last year, I was inspired to 3D model the ends and have Shapeways print them. You can see them here if you want a set:
Monon Spiral Gondola End by MononInMonon on Shapeways
The price is the direct cost from them, I haven't marked it up. The material is very thin and strong, sort of like a thin guitar pick.