Made a basic model of the Chimera+ for a project and thought I would share it. The dimensions are based on the following from E3D:

https://e3d-online.dozuki.com/c/Chimera_Drawings
https://e3d-online.dozuki.com/c/V6_Drawings

Made using SketchUp, haven't tested the STL but the skp is good. This should be used for fitment purposes only, it does not include every detail, and is not designed to be printed.