A 20 amp 240V ClipperCreek was only $500. http://www.clippercreek.com/store/product/charging-station-lcs-25-level-2/
It's portable, about the same size as the 120V OUC, and it will charge from 6% to full in under 5 hours. From 40% SOC to full in under 3 hours.
It was under $50. for the 30 amp...