You could check with Ian Mapleson to see if he has any? Website is
http://www.sgidepot.co.uk
There's a rather pricey one listed on his site, but it's worth contacting him as the site isn't always up to date and he might have something cheaper as well.
Systems in use:
-
Lithium
: R14000 600MHz CPU, 4GB RAM, V10 Graphics, 36GB 15k HDD & 300GB 10k HDD, New/quiet fans, IRIX 6.5.30
-
Nitrogen
: R10000 195MHz CPU, 384MB RAM, SolidIMPACT Graphics, 36GB 15k HDD & 300GB 10k HDD, New/quiet fans, IRIX 6.5.22
Other systems in storage:
x 2,
x 2