Hi
@Japonicus I'm Napa, California so I think zone 9b.
That bend was actually already there due to the tree reaching for the sun for years. I think it’s a cool feature with good movement. It’s almost a 90 degree bend right at the soil line. I could angle it in the pot to either accentuate or “straighten” the bend. I realize that I forgot the sketch I made, so I’ve included it here. I also sketched a cascade style it I don’t think it’s thick enough yet.
View attachment 333284
Not your 1st go at bonsai I see.
Either style is equally difficult. Either style requires a repotting to change the planting angle as well.
If I were going for a cascade I would repot 1st, so, after it repairs the roots, you'll be able to bend the trunk
where it would now be impossible to get that angle
over through the rim of the pot...unless, you can control a break in the pots side
in a way that the pot remains in tact.
If going upright in any other style, now would be fine to wire up with no smaller than #8 possibly #6 annealed copper wire.
I have no literati style bonsai and cannot help you style that accurately. Once recovered from repotting a cascade, I would bend in Fall
if healthy, and vigour has returned, and not remove any foliage at all. Allow the low apex to become sacrificial for many years, extending beyond the desired
length, but keeping tight movement in the trunk, and developing the branches you plan to keep.