I think that the M3 wizard robe with a new texture, as was mentioned above, would work if you did a transmap to create regular sleeves.  I know that I have to wear my academic robes and mitre twice a year and I don't look forward to it..they're hot and uncomfortable and for some reason people want to have graduation ceremonies outside in the full sun and weather...judges robes would be good because it's indoor work. ;-}