Please critique my home front-end alignment method

Important things to note here regarding alignments in general.
Always set CASTER 1st then
Camber 2nd and lastly Toe.
CASTER - CAMBER - TOE.
Because Caster affects Camber and Camber affects Toe. Adjust out of order and you can screw it up real fast.
If you’re going to do it yourself then get yourself a magnetic bubble gauge to measure Caster and Camber. We have a saying in the industry “The bubble never lies!” Make sure to read the instructions carefully and be sure that the gauge is as perfectly centered on the wheel as possible because any runout can affect your measurements. Make sure the gauge goes over the dust cap on the wheel bearing so it sits flush. If not remove the dust cap and stick it on the bearing washer.
Also make the angle degree marks so that you know exactly how much you turn it when doing your Caster swing(measurement). The reason we use 20* is that amount is not enough to get into the increased amount of toe out on turns (Ackerman Angle effect). So it’s important to do 20*.

Other things to know:
A vehicle will pull towards the side of the car that has LESS Positive CASTER. 1/2* less on driver’s side is good to correct for road crown.
A vehicle will pull towards the side of the car that has MORE Positive CAMBER (think of leaning a bicycle to turn). Again, 1/2* to correct for road crown is ok.

You really might want to consider finding a good alignment specialist and having them do it when you consider that the cost of an alignment is between $100-150 average on a classic car vs a decent bubble gauge at $100-150 to only use once and that’s not going to help you with toe adjustments at all.

Sorry for lengthy reply but I used to teach Steering and Suspension/ Brakes at a major automotive trade school so alignment is kinda my thing. So much diy misinformation out there.