I know there isn't a way to restore a deleted object but is there anyway I can put in another goat? Doesn't even need to follow the boy, as long as it is in the town. Otherwise it will bug me.

I think it is because I noticed 2 extra goats following him due to MVAExtended and I thought "oh, I can just delete those, it'll be fine". The goat was still there when I left but gone when I returned MUCH later.

I know Lucky is not an important character but this will seriously bug me.

You mean you disabled him with the console?

Just open the console and enable him.

No, I marked him for deletion because I hadn't realised that you could just disable.
Unless someone is a wizard with secret info, I'm pretty sure there is no way to get back something which has been deleted.

Now I just want to add a goat to Dragon Bridge so I feel like he's still there.

Open the console and type...

player.placeatme 0005487E

Already did that. It didn't work.
edit: oh wait, that's a diff code. Gimme a mo.
edit 2: no wait, just looked at the note I wrote. It is the same code.