I recommend against spending money right away, because you may make mistakes and wish to start over. If you have never played Age 2 before, this is probably the way you will want to start the game. The path you choose should depend on how much (if any) money you are willing to spend as well as how much experience you have. There are multiple ways you can start on the server. If there is a topic you believe I am missing and should add to this guide, please don't hesitate to ask for it. This guide is meant to be helpful for all sorts of players, from the person starting for the first time, to the experienced players looking for more detailed information.
Age 2 - Complete Guide - Beginner to Advanced + AeroCalc v2.2