Finally found a copy! The COMPLETE install DVD for Cinema 4D 11.5, WITH the Mac installers, plus I included all the extra language files from Maxon's site.
Cinema 4D Studio install DVD for Mac:
- Cinema 4D 11.514
- BodyPaint 3D
- Advanced Render
- MOCCA
- MoGraph
- Thinking Particles
- Hair
- Dynamics
- Sketch & Toon
- NET Render
- Architecture Extension Kit
- Engineering Extension Kit
- Broadcast Extension Kit
- French language updater
- French help installer
- Italian language installer
- Italian help installer
- Japanese language updater
- Japanese help installer
- Korean language updater
- Korean help installer
- Russian help installer
- Spanish help installer
And a text file containing the magic numbers. English and German are included in the basic installation. All the extras are archived in separate files in case you don't want everything, in ISO and Zip format so Windows users can have it too.

Minimum system requirements:

- Mac OS X Tiger 10.4.11, Leopard 10.5.3+ or Snow Leopard 10.6+
- 1 GiB RAM
- G5 or Intel processor
- OpenGL-capable graphics card (all Macs are equipped with one)
- Monitor resolution of 1024x768 pixels with 24-bit colour depth
- 1 GB of free hard drive space (not including documentation)

For everyone having problem to install this program, follow these steps carefully!
* This program is completely safe and works perfectly fine for mel! *
1. Install DAEMON Tools Lite
2. Mount the .rar/.zip file with DAEMON Tools
3. Install
4. When asked for, enter the serials you got in serialz.txt
5. Enjoy!