The problem I had with the old graphic is that it would require me to use a software license I don't want to use. also it looks absolutely nothing like an actual bulk rail loader (it's originally a chest modified from another mod). Maybe one day in the future I'll make a fork that uses the old graphics, if there's enough interest.
Also I know my model/sprite isn't the greatest, but I will be improving it over time. It's the first thing I've ever made in blender