John, it all depends on how much money is available. Usually there are one or two worn out parts that make it drive bad. Find and replace the bad parts and have it aligned by someone that know old cars.
These chineese kit parts these days aren’t that good quality and some of the old parts under your car may work just fine.
What kind of driving are you doing with this car? How much power does it have? Disc brakes are nice but are not absolutely necessary.
This car has not seen the road in at least 15...maybe 20 years.. Everything bushing I can see is dry rotted completely. I'd like to replace all bushings, ball joints, etc... If I can get away with spending 1k or less, I'd be good with that.