Need help getting these modeled and animated (if possible) for Unreal Engine 4

I have the top half to Rex (hes a blender model) under a Royalty Free License but its only the top half of him, the second half still needs to be done. Is it possible for someone in here to get the rest of him modeled?

Boxman is a simple character that I need to get modeled as well. Can’t see his arms but it Should only take 5-10 minutes or less to model his mesh. I don’t do modeling that’s why I’m asking for some assistance.

The little Besian Sloop creature in green i need his mesh modeled as well.

Game Project site.