Modding Project: DAI mesh to Sims 4 conversion

Hi! I have a mesh in Dragon Age Inquisition that I'm trying to convert to Sims 4. The problem is I have trouble teaching myself things and this is no exception. I can get the mesh exported, into blender and all the pieces joined up. I can scale the mesh. What I can't do is get it to the sim body size/format or import the textures into Blender to add to the mesh. NOw I am totally new to modding, having only done some kind of decent texture conversions for the face and skin. I am looking for someone who is willing to work with me and help me learn how to do this. If you know a REALLY good tutorial I will also try that.

Also: do you know where I can find base bodies for the sims to import into Blender? Thanks for looking and maybe helping me out!