I bought some from <!-- m --><a class="postlink" href="http://www.centralstatesoliver.com/Store.html">http://www.centralstatesoliver.com/Store.html</a><!-- m -->. for my 77 restoration.

This is a fundraiser for their club. These have the tool box underneath. I'm not sure if the centralstatesoliver chapter will have a rep at the winter show in Springfield Ill next month. 

At past shows there have been used steps without the tool box auctioned off. 

Sounds like your wanting one without the toolbox underneath and make some for yourself. I believe the original were Knoedler (sp?) brand. Sorry, can't help with specs for those.