opinions are good...
question, do you worry about airflow over the batteries/ESC's with that setup at all? You have the potential to be pulling 70 amps or so from each battery, I'd think that might get warm.
I should be able to balance the plane in the next week or so here. that will really define a lot in terms of where things like batteries go. if the nacelle batteries don't work, we'll have to change it... I think they'll work though, its less weight than the centralized setup, its less weight that the veco .19 engines they replace as well. and with the hatches already existing it makes it really easy to gain access to the batteries without modification of the frame in order to remove them for charging....