I can understand wanting to stay original with the DL, but even when they were new the LaserDiscs were problematic. Have you considered replacing it with a Dexter LaserDisc emulator board?
http://laserdisc-replacement.com
https://www.engadget.com/2016/07/10/dexter-laserdisc-replacement/
The control panel looks great for having black paint over it for an untold number of years.
http://laserdisc-replacement.com
https://www.engadget.com/2016/07/10/dexter-laserdisc-replacement/
The control panel looks great for having black paint over it for an untold number of years.



