You can get a cabinet maker or carpenter to build some. The originals are a particle board with walnut veneer including the front angled pieces. My dad is a carpenter and made me 2 cabinets for mine, he used solid walnut for the front trim piece for ease rather than trying to veneer mdf in that shape. I elected to go with the natural walnut color rather than trying to match them. The only issue there is that its going to take about 20 years before the color gets closer. That being said they look awesome and I am very happy with them.
I casually keep an eye out for cabinets and it seems the 2000/200 cabinet is much harder to find.
good luck in your search