So I've been thinking of this idea for a while, and I think I have it worked out how it'll go.

When you first start off on the boat, you won't be able to move or anything, then Jiub will ask you your name, and instead of the name menu opening, the stat review menu will open, you'll be able to pick your name, race, class, and birthsign right away without waiting. At this point the third person view and vanity cam will be enabled but you still won't be able to move. Then, he'll tell you that they've reached Morrowind and whatnot, he's sure they'll let you go, and boom. The entire right click menu is enabled, combat is enabled, magic is enabled, everything.

From this point, you can attack Jiub if you want, he'll fight back but the guard will sprint over to you instead of walking and tell you to cut it out, you'll have the standard "goodbye" option but also a refusal option, this will then result in the guard attacking you and result in you having a bounty, you can then do whatever you please, leave the ship and flee or manage to kill the guards and set out with a humongous bounty.

Alternatively, you can play it nice and go through the standard chargen, only without message prompts and without that guard asking you where your from. Socius Egralla will just give you your papers instead of asking you questions. You still have to give your papers to Sellus Gravius to prompt the main quest but you can also just leave without giving them to him and do as you please without starting the main quest.

The interesting thing about a chargen like this will be you'll be able to do things like steal from the Prison ship, pickpocket guards (if you can manage it), or flee the boat as a wanted fugitive. It could make the chargen sequence a lot more dynamic and interesting and I'd really enjoy playing with something like this. Even if you weren't interested in stealing stuff from the prison ship or anything you could probably still use it to breeze through chargen without all the annoying dialogue and message prompts.

Would anyone be interested in making this or giving me pointers on how to make it myself?

You may want to look at CDCooley's http://mw.modhistory.com/download-17-5610 to see how he altered the Chargen scripts. I've been using that mod forever, but your idea sounds way more immersive.

These are the script functions you need to choose your character:

EnableNameMenu

EnableRaceMenu

EnableClassMenu

That should get you started. Hit me up if you need any scripting help.

Yeah, I've been looking at the chargen scripts and I knew about those commands. I just finished my preliminary edits of the CharGenNameNPC script in order to reflect my changes listed in the OP.

What I'd like to know is what the best way to stop the chargen characters from speaking under certain conditions. I've messed around in chargen before, and if you fight or kill the NPCs, they'll keep talking even when they're dead or in combat. Additionally, they won't say their usual combat lines and sometimes won't even initiate combat with you, it's all rather odd.

Basically, what I need to know is, how can I adapt the scripts to account for these conditions, and how can I make the guards on the boat behave the same way as Ganciele Douar, running over to you when you misbehave and telling you to stop. I'd also like to tweak this dialogue so that it doesn't make you sheathe your weapons and such after they talk to you, I always found that annoying.