Josh.... AJ needs electric , as he already like a Match stick with the wood shaved off..
GNG450 is great off road..... Off I was commuting , I'd go hub motor for sure.
Crystlyte hub are the best.
Asto 's set up it the best IMO..
V2 of the GNG , will be interesting , there is a new thread on endless-sphere.com about ( as you already know I guess).