Hi - I've upgraded to a new machine and have a mostly functional Elegoo Mars 3 for anyone interested. All parts are in working order - including the LCD screen which was just replaced in March of this year. The limit switch (controls how far down the build plate will go) does need to be replaced for proper function, but that is a quick fix: https://www.elegoo.com/blogs/3d-printer-user-guide/elegoo-mars-3-how-to-replace-the-limit-switch
Elegoo Mars 3
OriginalToolkit
1 extra FEP sheet
Scrapper