Rom hacking questions

Mostly whether or not Lord J's ME does or doesn't do stuff without having to test everything out and waste hours if I can just be told because someone has done this sort of thing before;

1) Will I be able to give another character Morph without causing any weird conflicts?
I assume Terra would still morph and fly off during the Tritoch event and when battling Humbaba that second time.
Or will Terra still need to gain magic points to charge up the Morph duration?
Ideally, I want to put it on Gau or Mog so their Dance or Rage can have a temporary power-up in spell damage.

2) Similar question, if I move Dance off of Mog, does Mog still need to be in battles to learn new dances or anyone who has Dance?

3) If a weapon has an element attached, does it still use vigor for damage and it it considered a physical attack?
(Defense being the calculation for lowering your damage not magic defense.)
I want almost every kind of damage be some sort of element so when I have "halved damage from element ___", it blocks 1/2 ~ 1/3 of physical attacks. I don't want magic defense to be the only thing that matters.

4) That bug "kill interceptor with rippler" -- is it possible to transfer Interceptor to another character by scripting a monster to use Rippler on Shadow then someone else?
Not that I intend to do this, but it would be cool.

5) Is it possible to adjust the power of Shock and Health somewhere without hex editing?

6) Am I able to edit Sabin's "fire dance" sprites? I know there's that black sprite in the monster sprites somewhere or is that unrelated?

7) If I make a spell animation basically an Esper summon and an enemy uses this spell; does the animation take place normally or do the monster(s) disappear for a moment?

8) If I slapped a respawning Merchant and Soldier (to steal from them and the scripted "and their clothes" to use their battle sprite;
i ) Does this last indefinitely so that Locke is permanently and everywhere that sprite until triggered to return to normal or steals the other sprite/clothes?
ii ) What if a different character, say Shadow with Thief Knife, steals - do they change sprite or would it only work specifically with Locke?
iii ) Would it switch back to normal by returning to the airship, ect, entering the world map or maybe even crash the game for some weird reason?

9) If I remove Leap so that a character with Rage has a specific set of monsters to pick from, will Gau randomly add to that list just by recruiting him normally?

10) If I used the Relm or Sabin battle-recruit at some random point in the game where you normally don't have an extra character, will it bug out the game in any way? Say I make Relm appear to fight Dadaluma. Is she standing around after Ramuh talks? Can I dismiss her and re-recruit her back in Narshe?

11) Do any spells reject any kind of animation or smaller changes? I think I kept having my game crash when I tried changing certain spells like Ultima or Retort (but I didn't change everything-everything, in the spell editor - just the animation - might have been causing conflicts)

12) Spells;
i ) If I change Doom, does condemn just cast whatever new spell I changed it to after the timer hits 0? (ie: Cure for delayed healing)
ii ) Similar question with "Safe when low HP", Shell, Wall, ect. -- If I changed safe, shell and reflect, would those spells be cast instead or would it just have it's animation then pop-up with the usual status effect? Say I wanted "Low HP = exploder" or "Low HP = Cure 1"; or really any weirdness coming from trying to change those spells to effect items with "Cast _ on low HP" items.

13) Equip if "heavy"; if I enable heavy, can anyone use any items labeled "heavy" or can I have a "Locke only 'heavy' item"; I'm thinking of something like mixing Gauntlet & Merit Award character specific weapon but not limiting one character to the use of merit awards.

 
No need to run out and test these things for me but if you already know the answer(s), post 'em here for me, please.
I know technically anything is possible with enough coding or hex editing knowledge, but I've tried to learn it and I just simply can't so I'm mostly guiding myself around the tools I have available.