Leaf Module G2 basics

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So I've started putting together my parts list for a Leaf pack...

1) What size / diameter ring terminals do I need for the BMS voltage monitoring points on the leaf packs? These are bolts included with the module as I understand it, that I remove and insert the monitoring ring terminal under - correct?

2) Are the + and - terminals on each module the same size bolt as the above, or if not what size? I'm planning to split the pack into 2 7 module packs, for ease of installation and mounting flexibility. I'll need to use a few cables to connect the 2 packs together and will need to make up those cables. I realize I should be able to use copper bus-bar type connections on adjacent terminals, which I think I can order with the modules.

3) Any wire type recommendations for the BMS voltage monitoring leads / temp sensor leads? 18-20ga stranded OK?

4) Best way to "check" integrity of Leaf modules upon receiving? Want to make sure all modules are w/in spec, and don't get weak or iffy cells.

How should I go about checking each one?

Thanks!