Of course I wouldn't reccomend a portable Chademo charger as an alternative to regular Chademo public stations. But in many countries the Chademo coverage is insufficient for the range of the triplets, so there's that. I'm still on the "wait and see" phase, since payment on quick-charge station is scheduled to start in my country soon. Depeding on the price we have to pay, a portable Chademo could result in some savings. Combining that with cooling during "slower charging", faster charging on 7 or 22kw AC charging stations and adjustable output (for charging in some old places where 14A trips the breaker, it becomes rather tempting for me.
You got your car for 7k? Sounds like a nice price (depending on the remaining Ah, of course)