Shell Recharge ends up at $350 after discounts on Amazon (32 amp version). I have the 40 amp version and am reasonably satisfied. It was really the only charger that fit the bill (portable, 240v, 32/40 amp, UL listed). The amazing-e/Clipper Creek one was a significant markup for fewer amps.
I have seen some reviews that ding it for the cord being too unwieldy in cold temperatures, but I can't comment on that yet.