The Viper Z-GRASS 2000 hardware was up for auction on Ebay in September 2015. The auction description, written by Ed Larkin of Alternative Engineering, the company that made the hardware, began:

"This rare video gaming equipment is only for extremely serious collectors, these are not toys but a collection of one of a kind and unique gaming hardware from the period of the home arcade console revolution from the late 70's early 80's. It is actually new, not used, but I listed it as used because of wear & tear after 30+years in and out of storage. I built this machine myself as I did most of the boards in this one of a kind amazing collection.

"Although the Bally Home Computer/Arcade/Astrocade was not the most popular it was actually the best machine out there at the time. It had a System Bus and was capable of becoming a full blown graphics computer which was unheard of at the time. It ran with a Z-80 microprocessor from Zilog."

	Viper Z-GRASS 2000 (Ebay Auction). Ed Larkin/Alternative Engineering. September 2015. This is an archived screenshot of the auction for the Viper Z-GRASS 2000. The bidding started at $25,000 (twenty-five thousand dollars). Viper Z-GRASS 2000 Auction Description - This is the full description written by Ed Larkin for the Viper Z-GRASS 2000 auction in September 2015. "Viper 1, and Extended BASIC, User's Manual" (Preliminary Edition)- The auction description included a link to this document about the VIPER 1 Unit on BallyAlleycom.
	Viper Z-GRASS 2000. Ed Larkin/Alternative Engineering. The keyboard and case cover.
	Viper Z-GRASS 2000. Ed Larkin/Alternative Engineering. The finished consumer-ready version of the Viper Z-GRASS 2000.
	Viper Z-GRASS 2000. Ed Larkin/Alternative Engineering. Pre-Production System Board.
	Viper Z-GRASS 2000. Ed Larkin/Alternative Engineering. Viper 16K Memory Board.
	Viper Z-GRASS 2000. Ed Larkin/Alternative Engineering. Viper Multi I/O Proto Board.
	Viper Z-GRASS 2000. Ed Larkin/Alternative Engineering. Viper Prototype EPROM Burner.
	Viper Z-GRASS 2000. Ed Larkin/Alternative Engineering. Viper RS-232 Prototype Communication Board.
	Viper Z-GRASS 2000. Ed Larkin/Alternative Engineering. Viper Z-GRASS Prototype Operating System Board with Z-GRASS 32K (4x8K) ROMs.
	Viper Z-GRASS 2000. Ed Larkin/Alternative Engineering. Original oil painting on canvas of Z-GRASS Viper Systems with Alternative Engineering logo. Viper Systems Z-GRASS Color Artwork - This oil painting was used on a promotional picture for Viper System's unreleased version on the Z-GRASS hardware was on a business-sized card.