Slim,
Thank you very much for taking the time to write this up and post it, This is very helpful to see the inner workings.
Earlier this year, I had to have a battery module replaced and ended up costing me 6k from Via, this also included the contactors since it was recommended as a common failure for the Vtrux.
This helps see the extent of work required to change them out. 3k is a huge amount to change out contactors for a battery pack that is very hold and might not have a long life span.
I think back to it and think that I could have swapped a 6.2V8 in the truck and sold all the components for a good chunk, The motor and controller combo in Vtrux can easily fetch 5k, There are 2 motors and controllers in the truck.