commodore 64 x3 Consoles

Hi i have 3 commodore 64s for sale in this lot i posted then together because when i pit them in storage they were working and now after testing they do not fully. 1st one boots to a black screen with occasional garble on restart. I have a diagnostic cart if you know about that and it gives one white flash. 2nd one also boots to a black screen and diagnostic cart shows no flashes whatsoever. 3rd one the one with school serial numbers powers on but shows no screen when using rf signal. I figure if you know what to do you can get these up and running in no time but i don’t have the time.

edit: i was able to boot up the computer with the brown and white keys missing the number 8 key on the keyboard as shown it also has its own serial numbered box that it comes with.