How does one recreate a font sheet texture with a higher resolution font?

[crystal garden]

This is more of a forum question I guess.
I'm trying to overlay these letters on this 1024x1024 texture sheet with higher resolution ones from the uncompressed font file (in a new, 8192x8192 file with the 1024x1024 on the bottom layer, scaled perfectly to size). I figured I'd use a grid as that is what the file seems to use, but it has some inconsistencies. Would anyone know the optimal way to go about this? I don't want to upscale it with a esrgan model or anything, just precisely recreate the file with the source font.

If clarification is needed, just ask. I'm really stuck here.

[crystal garden]

for reference, this is the situation i'm currently in.

the potential is just great

[crystal garden]

okay yeah so I've just taken to doing this the HARD way (and the only way) of manually adjusting everything.

results are great tho

well those don't show it very well but TRUST

[heavy wasp]

Not sure I understand but I'll wager something.
While Kanji and Kanas don't require any kerning, roman glyphs do. So while I don't know why it was made as this, it's possbile that the glyphs (roman) have been placed, within a grid, and aligned with the align tools, ie: Not optically precisely, but according to the kerning settings a typical font have.

Here I can see two solutions:
Build a grid using the guide layout
(see screenshot) so you have a table (although an invisible one) to guide you when placing the different letters.
Using the grid you've just built and using the smart guides (be sure you have them on), place without measuring anything, letters will snap to their natural positionning
But first:
Convert your font to outline so the glyphs loose their "font" parameters and act like shapes. No kerning and spacing anymore.

I would suggest you convert them to shapes instaed of rasterise (It's cleaner) but it dpends how fast you are are selecting points with the vector selection tool.
I suspect that either way it will be a bit long.
I would also suggest you do that on a copy of the file so in case it's not what you want, you can still work on the file. Converting to outlines is definitive and not reversible once the file is saved and closed.