Sega game systems 1 lot or trade

Collected this stuff when my kids were younger, they had every vintage system set up by me in one stereo cabinet on wheels that could be switched to any game System by the push of one button. These were spare parts. The base unit in forefront is Canadian which the 20 pin plug Selling as a lot a very good deal! If separated will be priced the retail rate for current value. Possible trade for vintage stereo Mitsubishi pretuner 70/s