My group didn't do character creation as a group but the sorcerer definitely didn't seem useful, though it was a bit on his build (he was a dragon sorcerer and burning hands was used against creatures who resisted it since he didn't roll high on his damage).
I ended up playing a rogue with higher charisma then the paladin (who did very well) and felt that I had waaaayyy to many skills.
We also had a cleric without whom we would not have had any significant healing - which we needed.
Both encounters with poisoned creatures ended up with someone failing the save repeatedly and ended up taking ~25-30 damage per fight. Outside of the last fight we took very little damage in combat. If we didn't have a cleric then I am not sure we would have had the HP to finish this (even giving a week you can do it in).
Your proficiency modifier for a spell’s attack roll is the same as your proficiency modifier with spell rolls. Spell attacks are unarmed, but they don’t apply any special benefits from your weapons or unarmed attacks, nor do they deal any damage outside of what’s listed in the spell. Melee touch attacks have the finesse trait (see page 182).
You use dex or str for melee and you use dex for ranged. The proficiency bonus you add is the one you have for spell rolls.
Was in the process of editing post when you posted this :).
Rogues get Trained in all simple weapons, plus the hand crossbow, rapier, sap, shortbow, and shortsword.
Hand Crossbow is a simple weapon.
Plate sucks in general. There are a few threads about it. Additionally, while the simplest way to get into Grey Maiden is through fighter or paladin, it is not required. One could take fighter archetype or armor training general feat instead.
My point is that if Grey Maiden Plate requires the character to take feats to keep it as good as regular plate then it is even worse than plate.
Can you post a link, I tried to find it but failed.