Sorry this took so long,
TL;DR:
Daewi and all who scale (Ilpyo, Seungchul, Uma, the Crown Princes, Sujin, Ragnarok Gods, Old World Competition Arc Mori Jin) = At least
Low 4-C scaling to PowerToScale's calc. As an added bonus, Daewi himslef gets
High 4-C with Martial Arts as he was stated to surpass Okhwang with it. Daewi should also get
High 4-C dura with the Sage's Robe on.
Ragnarok Mori Jin and all who scale (Satan after 52x amp, Dante Okhwang, Mori Hui with the Original Yeoui, Body of the King R) baseline
High 4-C.
Mori Jin 250,000x =
4-B (1.1900866e+48 J/11.9 Kilofoe). Satan 250, 000 gets this and Phase 3 Satan with the boost will have
4-B (2.9752165e+53 J/2.975 Gigafoe) durability.
The above will of course scale to Supreme Gods, including Mori and Tathagata (when he eventually gets a profile) and Gods Absorbed R.
Satan is a case all on his own because he's a huge stone wall. Base Satan would be
Low 4-C,
High 4-C with martial arts with a
High 4-C dura to match. His Phase 2 with the 52x multiplier would make him
High 4-C and give him
High 4-C+ dura. As mentioned above, Satan with 250,000 will be
4-B, with
4-B dura.
To recap,
Top tiers =
Low 4-C
God tiers =
High 4-C
Absolute God tiers =
4-B
Minor detail, but since Okhwang has 2x Daewi's power, he should get
Low 4-C+ in base, and Post-Power Absorption Hui will be
High 5-A+ (2.54292e+39 J) for being 72x weaker than Old Okhwang.
Seperating Okhwang, Mori Hui and Satan because they have tiers no other characters share.
Mori Hui: At least
6-C, possibly
Low 6-B,
higher in Monkey King Mode, up to
Low 6-B, possibly
High 6-B with Jeahbongchim Acupuncture,
higher when using Re-Taekwondo, potentially up to
High 5-A to
Low 4-C when using more power,
Low 4-C at maximum power | At least
6-A,
High 6-A in Monkey King Mode,
higher with Re-Taekwondo,
far higher with Hallyang Style Pumba, potentially up to
High 5-A to
Low 4-C when using more power,
Low 4-C at maximum power | At least
High 5-A, at least
Low 4-C with Jeahbongchim Acupuncture,
higher in Monkey King Mode,
High 4-C with a combination of both,
higher when using Martial Arts | At least
High 4-C,
higher when using Martial Arts
Okhwang: At least
Low 4-C,
higher with Re-Taekwondo | At least
High 4-C,
higher with the Blade of Tathagata,
higher with Re-Taekwondo,
higher with Jeahbongchim Acupuncture | At least
High 4-C
Sata: At least
Low 4-C,
High 4-C with Martial Arts | At least
Low 4-C, up to
High 4-C to
4-B with Jeahbongchim Acupuncture,
High 4-C when empowered by heat | At least
Low 4-C up to
High 4-C to
4-B with Jeahbongchim Acupuncture
Note that Mori Hui's tier change for his earlier keys is due to a claculation error I made before. He's supposed to be able to reach
Low 6-B, possibly
High 6-B with acupuncture using
Dante as a reference