New (old) SGI Indigo2

Just picked up an Indigo2 at a swap meet. It came with no drives installed and, as a consequence, no operating system. I think it's operational since I get the nice SGI ba-ba-dink! from the speaker when powered up. SGI makes what they're calling Irix 6.5.22m available for free download. It is in (3) tarballs containing a bunch of tardist files. First question is: Is it possible to do a bare-metal install of Irix over the network using these packages? SGI manages to do a complete dance around the issue of whether this release is a maintenance ONLY (designed to drop over a previously installed system) or whether it can do a complete fresh install onto a bare hard drive. If it cannot, would someone with the 6.5 Base CD set be neighborly and contact me off-list? Second question is: The unit came with the EISA "Extreme" graphics adaptor. When I connect it to my shop monitor with a 13W3 --> HD15 cable I get absolutely no display. Are these boxes like the Suns and Alphas where they default (or can be made to default) to a serial console under initial conditions? If so, any pointers to the required null-modem wiring? (The unit has Apple-type 8-pin mini-DIN serial ports). Any sage advice appreciated! Steve --