edit: Would it be worth it to ask for a big Endian version?
A lot of MIPS processors (but not all) can run user programs in big endian mode by setting the RE bit in the COP0 Status register. It would be interesting to see whether this one supported it.
Some can also be configured with a pin on the CPU. It would require a hardware change and all the software would need recompiling and flashing (and maybe even modification).
