I used translate.google.com in order to translate the first post there --
For some time I have been working on a C128 version, which fits in the C64 case (slim case). I have some modifications built in like: VIC / VDC output switcher, Control port switch, 8 bit color ram, Accepts 6-36VDC input voltage, Dual SID, etc.
Here are some pictures of the project (still in the prototype phase):
EDIT: Pictures uploaded to the forum and inserted! External links removed! war64burnout"