that is amazing work, what size charger did you wind up with? I get the evse loathing part, but there are a lot of j1772 EVSEs out there which can do at least 7kw, would be preferrable to 120 @1.5kw. Worth considering having something like one of
these as well, and checking
plugshare to check availability. Would not be hard to integrate, tuscon ev has one with a pigtail and a j1772 with an integrated cover:
http://www.tucsonev.com/ for $100 less ($150).
Still, amazingly thorough conversion there!