Thanks for bringing that up because now that you have me thinking about it, I'm actually certain that would work. In fact, I did a quick test to see about the possibility of having someone survive up there with Cameela until the second turn and it was successful and I still only needed to movement glitch a total of 2 characters. This would be the ideal way to do it:
1st turn:
-Frayja buffs Higins with Power Ring. Higins nukes the Shaman for the Wish Staff. He should be able to take out the Shaman with his Javelin (since he'll gain some levels from the pre-Zalbard battles up to Cameela now that I don't need Bowie) which will let me strategically position him so the nearby Dragonnewt can't physically attack him and is instead forced to Blaze2 him next turn.
-Since Bowie or Kazin will be at the bottom of the turn order, I can use one of them to manipulate the 2nd turn via the menu so Cameela's first attack is dodged and the rest of the attacks towards Higins are spell casts.
2nd turn:
-Enemies are guaranteed to outturn my force because of my low AGI. Higins positioning will mean only 3 enemies will pose a threat to him: Cameela, Necromancer and the nearby Dragonnewt. With the perfect manipulation, it should go like this: Cameela misses, Cameela uses her Iron Ball (some insignificant Blaze3 damage), Necro casts Freeze3 and Dragonnewt casts Blaze2. He will survive if the spell casts are not crits.
-Frayja buffs Gyan with power ring. Gyan is movement glitched to attack Cameela and it is likely he'll leave her with about ~25 HP with a high double roll
-Higins finishes off Cameela. Even with the diminishing effect of the Power Ring, he should still be able to dish out ~30 damage with a high double roll.
So it seems like I actually can avoid the Bowie grind which will be pretty sweet. That could potentially change a good portion of the early game because I do specific things to maximize Bowie's XP in battles like North Cliff which won't be necessary anymore. When I get some free time, I'll put this concept to work and if all goes well hopefully I can snag that sub 2 hour Power On to the Princess Kiss I'm hoping to achieve.