Thanks to the help of Bogaa, and a lot of trail and error on my side, I managed to get a fully revamped Credits/Staff sequence, with the full name of the developers in display, so that it matches those from Zelda 2 Redux.
This is how the Credits look in-game now:

You can try it out right now!
Also, I have updated and properly organized the GitHub repository to accommodate both the MMC1 and MMC5 versions of the hack that we currently have.
The MMC1 version is the one that was available previously, but updated with all the new stuff added, while the MMC5 version is on-pair with main Redux now, and it's the version that currently has animation in the overworld working!
The MMC1 version does have an animation.asm file, but there's still work yet to be done for it to work properly.
The Automap tilemap needs to be added to the first 4 banks to work properly, and we also have to move the graphics that we want to have animated, to an extended area of the ROM so that we can work exclusively with the graphics and not worry about the existing code in the game screwing us over related to space.
One last thing...
The MMC5 version doesn't have optional patches yet.
The alternate graphic patches should be working, but I haven't got around to making their IPS patches yet, so in the meanwhile, the MMC5 version will have no optional patches. You could possibly patch the ones from the MMC1 version over to the MMC5 one (the non-graphical ones), but there's no guarantee those might work 100%.
I know the GFX patches will NOT work on MMC5, and I believe the Rearranged Bosses won't work neither, but you guys can try the other ones and let me know if they work or not in the MMC5 version.
Enjoy!
Oh gosh, I would have to check, but I want to say it was 1C.
Just checked, you used $21

I remember I went through all the shades of blue in the NES, and I went with $22 because $21 looks a bit too bright, while both the Green and Red tunic are kind of moot in color, so I wanted to keep it in the same tone as those.