Forgive me if this sounds off hand it is not meant to be, I am just adding my experience. But why go to all the trouble of uploading all those models etc or other complicated steps, when in reality all you have to do (and what I do) is model in a half decent programme that lets you decimate to your heart content without distortion? It is what I do. I get a model as low as I can in triangle count without losing quality and upload it with minor adjustments to the lod triangle counts. Therefore larger models I can make 1 or two prims. However, saying that, I do not deal in arbitrary creations like furniture but work more with organic shapes and works of art. Just my two pennies worth.