I have no experience with your EZ-towr, but it does seem that there used to be more to your system than is there now.
The Squirrel SCSI plugs into your PCMCIA port? The HD and the CDrom are connected thru that? I don't remember if you can boot with Squirrel.
3.0 Roms will work with OS 3.0 and 3.1. OS 3.5 and 3.9 require 3.1 roms.
1200 MB requires +5, +12, -12 volts and ground (common return) to power up. These supply rails are included in your power supply. If you are good with electronics, no sweat. If not, getting any of these wrong will probably fry the MB.
There is a 030 accelerator AND a 8Meg ram expansion w/68882 installed at the same time? How?
Was the EZ tower normally supplied with an AT power conversion cable?
Detailed pics overall and up close (and in focus) will help others help you.
It does sound like a good find.
