Yes Tom it's amazing what turns up, I have had the ST800 for about 4 years and was from the owners son since his dad had passed away recently, he bought it new, the original box etc is like new too and when I first got it all I did was inspect it and saw it needed a new belt as looking at it and the condition it was probably the original belt. It's taken this long and being furloughed to get it up and running, I did run about an hours worth of films through it and it performed brilliantly, you can just tell its use was limited, guides and sound head are perfect, still green too, no scratches or chips, many were bought just to run a couple of 50ft home movies. My Sankyo 800 is the same.
About 15 years ago (probably more)my friend got a phone call about a GS1200, he went to see it ,what a find, it is like it has just been bought, condition is incredible and how you want to find them, stored properly, he paid next to nothing for it considering what they were selling for, he still has it and it's in exactly the same condition, it came out of the box to look at it and was put away and has not been touched since,Mark