I have a partial STAR wrapper that may be useful: https://bitbucket.org/jgoecks/jeremys-code/src/d7096c132657420f08b540c6954b947f648aac80/galaxy/tool-wrappers/star.xml?at=default

Whether you use this code or not, I do have one request: please put the output in BAM rather than SAM format in order to save disk space.

Best,

J.