Had a similar issue with my boat. Took off the door and lubed the tracks and rollers, but kept having the issue. Finally I realized I was not aligning the rollers correctly when I reinstalled. Once I got it aligned I have had no other issues
I have a 93 and when I bought my boat there was a big hole there where they were keeping an ice chest. I put in a portable fridge there, but it wasn't the easiest job I ever did.
We considered an icemaker, but we're not comfortable drinking the water from our on-board tank or using it to...