Love the build up though I'd say 5s with that motor is too much.

Question, how is the balance with that huge battery on one side? Also, have you considered any way to move the battery further forward? I'm planning a conversion but I want that battery up where your servo is, I can do only one servo for steering, just not sure how the tray would mount and I don't think the Techno is big enough for a 6000mAH battery...