Ok, here we go. Under well stored conditions, $50 would be close to stealing it. As we all know, depends who is looking at that moment. Curtis had to rescue one on ebay with the min. opening bid plus shipping. I think the opening bid was $40. If that was "out in the shed", it is likely so corroded and rusty as to be close to worthless.
On the positive side, the screen is working. It appears that the Excutive in now infamous for having broken connections in the video circuits (solder joint gets stressed and fails). I have one of those sitting behind me now. I repaired it once, took hours to get it apart to get at the joint, it worked great, I put it back together and I was back to square one. That is where I am to this day, square one. Machine works fine just screen doesn't come on. BTW, this is the same machine Curtis rescued. I bought it from him several days later.