Since you don't even have your gear yet, why not just wait until you use it to see what you may like to buy to maintain it. Remember, vaping is not a one size fits all. So I say slow down a smidge and enjoy your gear when it comes.I've only bought 0.5 ohm coils.
Come back here if you have questions or just want to tell us if and how you are enjoying it. We will help you straighten out any concerns/problems you may have. Or celebrate with you if you love it.