A little help please


I am new to the forum. This is my first posting. I dabble a bit in audio equipment, ( buying & selling ) mostly ebay and craigslist. However I recently attended a estate sale and purchased a piece of equipment, that I think requires more knowledge than I have. ( Nakamichi 1000zxl Limited gold face)
I bet that will make some ears stand up. The unit is cosmetically fantastic, sonically the left channel does not play. After research, I found, repairing the unit will cost between, $1500 & $2000. I am going to sell it, however repairing it is questionable for me, profit wise. Plus some buyers may want their own tech to do the repairs. After extinsive research, I have found, there was between 100 & 200 made worldwide. They were made to order and sold in 1981 for $6000.00. Ok here is the question. Value?
As I stated it is for sale. Being such a high end and rare unit, I feel it should command a fare price.

Thanks to everyone who responds
staygroovybaby
You are in the land of 'eye candy', as sonically the unit is a dud. If someone is looking for the best cassette player they will want the Nakamichi Dragon.
I’ve been laughing over this one since 2014. The 1000ZXL Limited bar none is the finest compact cassette recorder ever made. They record with a flat response from 20Hz to 20kHz (15Hz to 28 kHz -3dB at -20dB DIN), that’s R2R territory.

The Dragon is the most well known Nakamichi, and strengths are auto azimuth alignment in playback. This is a great feature to have for pre-records and on tapes that were azimuth aligned when recorded. With the 1000ZXL’s A.B.L.E (Azimuth,Bias,Level,EQ) system any tape can be optimized for its maximum potential prior to recording. This coupled with discrete Crystal-Alloy heads make this an unassailable cassette recording platform that was never bested by anything that followed.

I'm still waiting to hear what the guy's associated equipment was.  It would be odd if all he had was a cassette player.  I guess other buyers bought the other gear and left the cassette player. 

I always dreamt of having a Naka 1000ZXL. I finally found one in 1992. I had it checked and serviced by an authorized service center.

I tried it once and, ever since, it has been sitting on the shelf, unused. No use for a cassette deck any longer, but I love looking at it.