Congrats on your find!
Those all look like wonderful machines! As for your question about getting rid of the Harvest Gold set, I would advise against it, especially if they still work. I had that same exact washer (A108) in white, and that thing lasted from 1976 until 2013 when the transmission finally went out (I still kick myself for not fixing it). We had had it since 1997, and it had been owned by at least two other people prior to that. I would bet that your gold washer would probably still work as well. I bought a 1978 A208 about two years ago, and it was still working when I got it, and I believe it to have been a high-mileage machine, given all the wear on the porcelain tub coating. All that is to say that these old machines really are as indestructible as they advertised. However, I wouldn't recommend just diving into using either washer until you inspect them. The main area to check is the damper pads. If any of them are missing, then I would strongly discourage running the machine until they are fixed, as it doesn't take long of that aluminum damper riding on the metal base for the aluminum to get totally destroyed (I was EXTREMELY lucky that this didn't happen to my machine, as one of the pads was torn away from the base). These are very simple machines to work on, so perfect for someone wanting to learn how to fix things. At the very worst, you could at least use the harvest washer for parts if it has something major wrong with it, such as a seized transmission. Many of the parts for these have recently been discontinued, so they won't be getting any easier to find, unfortunately.
Hope this helps,
Thatwasherguy.