Before complete strip down, leave the stanchions in the yolks and check the alignment; Any twist,or fore-aft mis-alignment will cause a "sticky" result no matter how good the bush's are in the end,
Next, wear, sliders in time get worn..thats a fact. It was rare for the "old lads" to change the fork oil, After many years the spring sides frett away on the stanchion walls causing steel particals to mix with the water/oil mixture, The bottom steel bush "use's" this abrasive slurry to grind the alloy slider bore.
New bushs will be a good fit at the top and bottom..with a fair amount of play/slack in the centre.
I have started to retail a few restore kits to correct this, I press in a thin wall [1mm] steel sleeve and some turn graphite Nylon bushs to suit, Nylon running in steel is far better than the original steel on alloy.
Postal logistic's to the USA are not good,and expensive,, unless you can fit them you self, you will require access to a lathe.
The best tool in the box , is just good old common sence,and follow the book.
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