Yep, putting all that stuff together really takes time and thought. I remember dinking around with my
Enginer PHEV kit for my Prius. It was a VERY time consuming process. I was also talking with a friend the other day who was building a Headway pack. He was working on it and dropped a wrench on the open leads... It toasted 2-3 cells right in the middle of the pack that he had glued together. So, take your time and do it right. Things can go bad quickly.
You're doing a great job though! Looking forward to more.