I'll deal with randomly doling out your crusader maneuvers, I guess. I suppose it's my job.
No, template classes do not give you hit dice. If you take a template class that does grant HD, I'm ruling the HD away from you.
For the cold iron weapons, I'm going to say it costs an extra 2,000 gp every time you get them enchanted, but if you put several enchantments on at once you only pay the 2,000 gp once for that enchanting "session". (airquotes because that session is likely to be broken up over several weeks)
Enchantments that do extra energy damage are usually quite nice, especially holy ones (which affects all evil-aligned enemies and does more damage than the other elemental enchantments, but also costs more since it's +2).
Spell-storing weapons sound really cool, but the hard part is finding a decent single-targetting spell to put in it. For instance, the only third-level core wizard spells that are available are Ray of Exhaustion and Vampiric Touch (fireball hits a radius and lightning bolt hits in a line). I suppose you could put Scorching Ray in it...
As for the actual rules on spell-storing weapons... the spell the weapon produces will be exactly as if the original caster had taken an action and cast the spell on whoever the weapon hits (except that the weapon doesn't have semantic components or casting time or material components etc. etc. but you get what I mean). Also, you can't use metamagics to buff a spell over level 3 and put it into a spell-storing weapon.
I'll approve Psychokinetic weapons.
If you attack an incorporeal opponent with it, and the weapon misses due to the incorporeality miss chance, the 1d4 force damage still happens. (and for the curious, I think only the part of the weapon you hit people with is enchanted, which is why ‼flaming weapons‼ do not cause their owners' sleeves to catch fire, so ghosts would still have trouble picking up a psychokinetic weapon)
No, you guys aren't likely to be fighting many dragons. Two, maybe. (barring random encounters with the little wyrmlings, but I wouldn't optimize one's build for those because... random...)
Core races can acquire "natural weapons" by taking a level in monk. Assuming that race advances by class level, of course.
Psionics are not currently in this campaign, but since people keep expressing interest I'm considering making a side-quest to unlock them.
And yes, there is a game today, in about 2.5 hours.