New used 410 tips hints

[OneKiwi]

Ok so I have recieved my used 410 and Im in the process of going through it cleaning and checking it over.

What are some things I should know and look out for?
Things to have in the tool box such as spares etc
Do I need the brass weights?
I have alu side pods does it make it too stiff, should I go for the plastic ones?
Sway bars needed?
I have +2/-2 insterts do I need others?
Toe in hubs?

With the outdrives they feel loose, not in and out but left to right, this normal?

What upgrades are recommended?

And a nice setup for tight carpet, or tell me what tracks run carpet and Ill look them up myself

thanks