Vintage IMSAI 8080 microcomputer with boards. Powers up, Works, Nice Shape

Description

Here is a vintage IMSAI 8080 microcomputer.  It's in pretty good condition, powers up, and works.  It includes the following boards:
IA-1010 Rev 1.3 by
Ithaca
Audio Z-80 CPU board with a NEC D780C processor
RAM-4A Rev 2 by IMS Assoc. Inc. (IMSAI) 4k static RAM board (1976)
106C S-100 bus terminator board by Godbout (1978)
This system uses the Zilog Z-80 chip and is a slight enhancement over the original 8080.  The CPU board manufacturer is Intersystems under the name Ithaca Audio.  A complete comb-bound IA-1010 manual is included along with a manual for the Godbout 106A active terminator board, schematic for the IMSAI RAM-4A memory board, and schematic for the IMSAI CP-A control panel.  Additional IMSAI documentation is available online.
Item is vintage and as such has marks and wear from age and use.  This was my personal computer before I decommissioned it almost four decades ago.  It's been in storage ever since.  It powers up, and still works with the IMSAI Test Program 2 as published on page 35 of the IMSAI 8080 manual (available online).
The original configuration included a 5-1/4" floppy drive (Wangco 82) and two 8" floppy drives (Calcomp 142M).   I reconfigured this computer for this sale to be a basic IMSAI 8080 with 4k RAM that I could demonstrate as working.  I lost my CP/M system disk and was not able to demonstrate functionality of the floppy drives other than turning on the drive LED and waiting to boot.  All of the other boards and drives from this system will be listed on eBay in the weeks to come.
Please look at the pictures carefully and ask any questions before purchasing.
One of the pictures shows that a few of the S-100 bus connectors do not have the right mounting tab.  That might be to accommodate out-of-spec board dimensions.
This computer will be carefully packed and insured.  This machine was custom built and modified by the builder.  Not all functionality is guaranteed because I didn't test everything.  The best I can tell is that all switches work, and LED A7 does not light.  This computer is sold AS-IS, but I'm sure it will get you started with vintage computing.
The pictures below show the operation of Test Program 2.  This program loops reading the programmed input switches (left side byte), and outputs their status to the programmed output LEDs.  I toggled in the program as shown on page 35 of the IMSAI manual, and then I hit the run switch. I set some input switch patterns and took pictures of the LED output so you could see it working.  Please message me if you have questions.
This was my first computer and I have some other parts for it that I'll be listing soon.