Beginner questions! (mouth insides) *EDIT* most important question!!

*EDIT* WHAT DO I ATTACH FIRST, THE FUR OR THE LIPS?

Making a fennec head (Small jaw!!)

If I am making "snaggleteeth" do I need to position the teeth a certain way for them to fit in a small jaw?
Will it close alright? How should I go about doing this?

I am sculpting the teeth with air dry clay, good choice? or super sculpey? I *may* also be able to use sculpey light X3

I've gotten the vibe that I should use black fleece for the lips.
What about the inside of the mouth? (under the tongue and upper mouth) black fleece or another material?

should my mouth be hidden on the inside with black mesh? is it better? how should i go about doing it?

is it a better idea to make the tongue with fleece or clay?


Sorry for all the noob questions! XD I woulld be grateful if a couple of these were answered, doesn't have to be all!
Mostly I need an answer to the lips/snaggleteeth questions :)

Thank you :D