I set up this machine to dual boot with a fresh copy of Ubuntu 18.0.4 installed. It took some time and a few false turns, but I'm able to compile my own 'hello world' file now:
hello: ELF 32-bit LSB executable, MIPS, MIPS32 rel2 version 1 (SYSV), dynamically linked, interpreter /lib/ld-, with debug_info, not stripped
Next I'll work on rsync, etc, to automatically move the final build to my Omega 2+.
Thanks for the suggestion of running outside a virtual machine.