Not aware of any scale drawings of Phoenix or the original CVR steam loco.
A sister loco of the steam tractor operated in England and has a drawing here - http://www.merionethrailwaysociety.com/lady-m.html (and another in the Red Lake tramway book).
However, the maker's records where lost so these are just outline drawings and the loco underwent significant changes when the CDR converted to diesel.
Not the best photos, but I took a few snaps on my phone you can access here. https://photos.app.goo.gl/83c7dxBXXtEiqibo9