Intelligent design is not incompatible with evolution, it deals with the origin of life not the process by which it adapts.
GOD CREATED LIFE!
There it is! I said it!
And I'm going to say even more: there is absolutely no scientific proof that shows otherwise.
In fact the complexity points keeps pointing this way. It's just a question of keeping the mind open. :)
Ok... You can now ban me for my comment!
Go ahead pray a bit and maybe He'll answer you those questions!!!
I surely don't know the answer, the same way scientists don't know how life was created in the first place. What everyone have is wild guesses and faith in those guesses. ;)
As to the material: First we should try to find out where to look for...
But if you imagine it is simpler for condensed space dust to become divine than to become alive, then there is a certain bridge I am sure you will be eager to bid on.
Now it's true we don't have a good idea how abiogenesis happened, and it's possible it could have been a supernatural thing - although everytime we thought that so far we've been wrong.
As you point out we have no evidence to support that either, and assuming that ends further scientific inquiry. It's not a useful or helpful thing to believe even in the unlikely event it was actually true.