It is clear that the '83 Targa is at the center of all your car problems. Crystal clear.
My selfless recommendation is to unload the thing: Then and
only then will you find the car wholeness and balance you seek.
I know just the guy
Seriously, and perhaps I may be alone in this, during my commutes and just general driving in DC traffic I could care less about handling and "performance", etc. in my ride. Just give me comfort and quiet, an excellent radio and an a/c system would make a well digger say, "bit chilly". Auto trans as well.
That's probably why I drive a Highlander. No "soul" but if I need that in a commuter mobile I'll play some Al Green. On weekends and local commutes, F-150.
So, I support selling the 325 and finding a nice used 4 door truck of your choice, mid or 1/2 ton. They are great.