If you take some time to watch the most interesting episodes (to you), you'll find that there are a lot of issues you'll need to characterize.
- top/bottom balancing?
- battery box heating/cooling needed?
- overcharge/undercharge cause FIRE OR EXPLOSIONS?
- Nordlock washers on the electrical connections?
He's a slow talker, try 125% or 150% speed. Their rule of thumb is that when the battery boxes are complete and populated the job is 80% done.
IIRC they have a contributor in Ireland. I believe he is doing a BMW 5-series conversion.