How would the above be checked?
Tracking you will need to pay to have checked unless you have gauges.
The rest are just a case of jacking the car up and feeling for play.
As you rightly say, if you pay to have your tracking set and then change anything else you'll need to have it done again after, but its also the thing on that list that will make the most difference to how badly the car handles without making any knocking noises etc, anything else if its really badly gone (and from how you are describing it sounds like something is) would have other symptoms besides bad handling.
Very likely outcome is that its all just worn out if you are talking 100K miles like a lot of them have done now.
Ive recently changed shocks, inner track rods, outer track rods, bottom ball joints, suspension top mounts on our 172 and every one of them needed changing, TBH the rack does too now really as even that has a little play in it, but I just havent got round to that yet. Feels much better now than it used to though since all the changes.
These cars are not massively over engineered in terms of the component strength in any of these areas and if you start drivign them hard on lots of miles you'll find things wear out.