Shadow Monarch Sung Jin-woo (Solo Levelling) vs. Goku (Dragon Ball Z/Super)

Scenario: Sung Jin-woo (Post vol. 8 version) enters a portal that leads to the world Dragonball Z/Super. His cold and dark aura causes a misunderstanding with Goku. They fight.

Assuming all things being equal and no dragonballs are used in a fight to the death, what is the highest version of Goku that Shadow Monarch Sung Jin-woo can beat

Scenario 1: Post-Namek Super Saiyan 1