You could probably make Baine if you looked at what armour sets he uses and customisation settings. As for Grom, as far as I'm aware he doesn't have a model. The WoD one certainly hasn't been put in yet.
I have one more question if you guys don'tt mind. Is there a way in wow model viewer, where I can load the entirety of the Barrens (Razor Hills particular) without having to build it myself?
You'd need the WoW map viewer for that, which doesn't work with current WoW. The best you could do is record the barrens on a live server and then greenscreen in your model viewer characters
"Do not look down, my friend. Even in the darkest of times, there is always hope... Hope for a better day, hope for a new dawn... Or just hope for a good breakfast. You start small, then see what you can get." ~ Covetous Shen