Thanks for posting this. I'd like to start working on a conversion this spring (have to get my wife a vehicle of her own first she said), and I have a similar commute - 14mi round trip. I was thinking of going with bigger SLA's, but seeing that you have plenty of range, I think I will be fine with some smaller ones for the time being, as I'd like to get the bike together for fairly cheap so my wife doesn't kill me. So far it looks like it'll cost me around $2300 not including the cost of the bike..
Hope you don't mind, I'll be using your build as a good reference for mine, whenever I start that is
I think the most difficult part is going to be finding a bike for cheap.
Mind if I ask how much that Agni motor cost? Is there still room on the Ninja for another battery that can still be hidden behind the fairing?