Those are nice sets. I wish I could find that kind of stuff in the dumpster.
Shoot, if I can take this form the curb and make it work then you can find a way to make your finds smell better.
If you still can't stand them it would be more humane to let another collector buy them off you VS scrap something that will never be made again. Later (read 60's and up) large screen monochrome sets are fairly scarce.
I have a 20" mini-console Zenith that appears to use the same chassis as yours and works on stock caps(though I had to replace the CRT due to an act of stupidity on my part). Any tube era color Zenith is a rock solid product in my book.