*SUCCESS*!!!
Obviously, all results will vary...
The secret to my success; heat, vibration, grunt.
Step 1) heat. High-setting on heat gun carefully applied around threaded interface area.
Step 2) tap, tap, tap around threaded interface area of tube nut with hard plastic hammer.
Step 3) apply Klein ‘Grip-It’ strap wrench around threaded area of tube nut and set big smooth-jawed wrench to lower fork tube axle pass through boss.
Step 4) put on grippy, rubberized Atlas gloves and apply judicious opposing-force grunt twixt Upper placed strap wrench and Lower placed big wrench. Bobs yer uncle!
There’s one fork. Now to the other. Fingers crossed...
-Galen