Hi again Mal!
OK I am happy to help start you off on your modding journey.
I did a tiny bit of modding with FF1 20 years ago but stopped for a long time as my computer back then broke and I bought a new one that annoyingly couldnt run the game. I recently realised that both FF games are now on GOG and work perfectly on Windows 10 so was able to get back to it recently.
The first thing I would suggest is to mod from Freedom Force Vs the 3rd Reich as I have tried with both and can definitely say the 2nd game is easier to mod with as it needs much less python scripting.
The 1st step is to download ALEX'S FFv3R MOD TOOLS from
https://www.alexff.com/goodies.php. Install that into your game directory. That will include ffedit and character tool2.
Next download EZFX also from the same site and EZhero and install them too.
After this download and install FFX 3.3 from
http://ffx.freedomforceforever.com/downloads.htm.
You can get other resources such as skins and meshes and .hero files from many of the sites listed on this forum in
http://www.freedomreborn.net/forums/index.php?topic=58687.0I would also download a couple of other mods just to get to know them and familiarise yourself with the way they are scripted. One I highly recommend is Marvel Adventures which you can find at
https://www.moddb.com/mods/marvel-adventures.
To start making your own mod after this open ffedit and go to help. It gives you a great step by step introduction to modding the game.
The main difference I have found between modding FF1 and FFVT3R is that FF1 uses more difficult python scripting. FFVT3R uses EZscript which is 100x easier to use. To get an overview of that side of modding I recommend watching the 3 tutorials made by BentonGrey at:
https://www.youtube.com/watch?v=zjRAL8-MhAY&t=6s&ab_channel=BentonGreyhttps://www.youtube.com/watch?v=b3iWjqlknsU&t=1246s&ab_channel=BentonGreyhttps://www.youtube.com/watch?v=ACr-G6jgT1U&ab_channel=BentonGreyAnyway I hope that gets you started. If you have any questions or need anything clarifying myself or Im sure other members of the community will only be too happy to help.
Also to make your own meshes is not the part I am most familiar with but there are certainly tutorials regarding using 3D Max and blender which I believe are the most frequently used programs for that. Photoshop can be used for skinning.
I look forward to seeing more of your amazing work!