So... I just read the whole thread, and only found out in the last ten minutes that Soarer has disappeared.
Anyway, I acquired myself a small collection of 122-key model Ms, and an even smaller collection of later model M, with fewer keys... (11 keyboards in total, all for nothing!) I've cleaned and converted one of the 122-key terminal models, and it is great.
I have written myself a new keymap, but get this error when trying to flash it:
[nels@ella configs]$ scwr mtdnelson122.scb
scwr: error while loading shared libraries: libusb-0.1.so.4: cannot open shared object file: No such file or directory
I'm using Fedora 23, which seems to have libusb-0.5.
[nels@ella configs]$ sudo dnf info libusb
Last metadata expiration check: 0:04:58 ago on Tue Jun 21 20:54:02 2016.
Installed Packages
Name : libusb
Arch : x86_64
Epoch : 1
Version : 0.1.5
Release : 6.fc23
Size : 66 k
Has anyone got any suggestions? I guess I'll have to downgrade in some way... Not sure how at the moment.
<edit>If no-one comes up with something better, I guess I should find an older version of Ubuntu or something, and boot from USB...</edit>