help with a character set up before each game, and other questions

Hello, I could use some help or at the least, some idea's and suggestions.
I am attempting to make a vehicular combat racing game, basically a death race game. I have purchased 2 assets, a cars pack with many interchangeable body parts, and a weapons system that is designed for vehicle mounted weapons.

First question is, where is a good tutorial on how to make a lobby for a game where I can let a player set his vehicle up for a game each time, from looks to which guns for the fight?

Second question, I need a good tutorial on showing damage to vehicles.

Possibly third, keeping track of damage done to each vehicle, and by each player for a game stats page?

Thanks, and I really do appreciate any help

Jimmy
Tesseract Studios