The exhaust components will help whether or not you stay NA or go FI but you can do that down the line..while it is not required it is a good idea to get a re-tune after major part installs.
If you are going FI I recommend not getting the HR cams and either staying with the stock cams or buying blower specific cams...this depends on your budget as you can buy cams that are a direct swap that you can do yourself or you can buy cams that require a spring upgrade which require special tools/knoweldge to do and depending on your skill level you will have to pay someone for that install.
If you are going FI don't waste your money on the CAI as it won't work with a SC.
Check to see if the V3 comes with a handheld tuner, if it does obviously you don't need to buy one...but check to see what brand it is and if the place you are going to have it tuned supports it.
If you buy the V3 the install is easy, esp since you don't have to tap your oil pan; if you have mechanical knowledge/friends that can help you can have it on in a day. If you can't do it you need to budget in the costs of having a shop do the install.
Check to see if the SC kit has a BAP; modding and boost are addictive and you will want more and more, it is easy to forget about your fuel system until your tuner tells you no more power due to the injectors/pump being maxed out.