1) I have a gildergreen sapling sitting in my mod for aesthetic reasons. How to I make it unobtainable by the player?

2) Will having it mess up that in-game quest also?

3) I have a display case that is 2x normal scale. I've created the display markers and linked correctly (I know they're right, I've done lots of displays), but they don't work sitting inside that 2x case. Anyone know why?

1) It's best if you duplicate it rather than use the original. Erase the name field. It should be unobtainable now.

2) No, since the in-game quest is tied with references, rather than object

You can use the base form w/o issue. There's no script on the MISC items, so the quest related ones are bound to be ReferenceAliases. To make it unobtainable, attach a script to your reference and http://www.creationkit.com/BlockActivation_-_ObjectReference http://www.creationkit.com/OnLoad_-_ObjectReference.

ALternatively, you could make a Moveable Static and use the same model.

Thanks. I used denmax's method (cause I'm lazy ) and it worked perfectly.

Still can't get the display working though