393 Motor repairs/ make serviceable

I have approximately 20 393 motors to fix 2 wire connectors on. VEX Robotics recommended buying 4 packs of 6" extender cables and soldering and heat shrinking them on to what I have. My question is: Would they be legal for a Competition Robot? Would they pass inspection?

Yup. Totally legal. It’s really easy, too.

Even easier is buying the prongs.

I have some that just need prongs, which I don’t see listed separately. Some need just the plastic sleeve over the prongs and some need the entire connector.