You can also check www.thlaudio.com. This firm is located in Taiwan. They may have something alike but NOT your personal choice.
www.my3c.net also got some cases for Power Amp. Unfortunately, I don't think they provide an English translation. From the list of choices on the left, CASES should be second from the BOTTOM. My3C USED to be a good provider but its services deteriorated a bit recently.
www.thlaudion and www.vt4c .... I don't have shopping experience with them.
The price in my3c.net is in New Taiwan dollars. NT $1000 should be around US$ 32 or so.