Morning Nick, yes please ask him, the clip is not large its 28mm in length x 9mm wide by 19mm total height, but it involves 3 or 4 drillings ( circular holes of 3.5mm ) to locate the rods. Plus there are some cut outs that I would normally mill out from a solid blank but maybe able to 3D print in construction.
The key part is the plastic used would need to have a good tensile strength and high heat resistance.