The only thing left, and one that I am not willing to tackle, since the outcome isn't worth the effort and cost to me, is the fuel gauge issue.
I have done everything else that I am aware of and can currently recall: Driveshaft u-joints, rear axle seal, starter contacts, fuel injectors, LBJ's and dash clock. Those were some of the common issues that I had either done preventatively, or that had become a serious problem. I have also done all of the regular maintenance things, like timing belt and its related components (plus the radiator, while I was in there).
I headed off the power antenna issue 11 or 12 years ago, after I bought it. I put a switch on the antenna, mounted on the left side of the dash, so that it didn't do that retarded up & down every freaking time I turned the key. One of the many stupid design flaws of this vehicle. And there are quite a few of those.