Regarding the need for a discharge tray, remember the ICC can also individually DIScharge a pack! So the only reason why you might like to use a tray is if you want to store your packs in it, or if you like deadshorting.
The motor run in feature is adjustable, this means you can set voltage and runtime. Would you like any other motor run in features? Name it and we will make an update if possible.
No price has been set yet and it is not yet available, not even in Holland!
Hollowman, we do not sell directly so yes you should go to a shop like ROAL.