The Vented endbell should not be legal unless the motor was resubmitted with it. It's a physical change to the motor, which per the rules would require it be resubmitted.......but we all know how ROAR works.
The SmCo rotor is not legal under the current rules....though I am sure its just a matter of time before it becomes legal.
Epoxy dipped is legal, though I doubt its being applied correctly, hence making it actually hamper the cooling.
As for the red wire, legal....but I find it strange that one wire is better than another. The rules specifically call for pure copper wire....was the gold wire not pure? Or is the red wire just using thinner insulation, thus allowing the wire to be slightly bigger, but still measure the same....