I would say that is what you need to get you to the 500 to 550 rwh level on pump gas with a good tune. Almost anything else can be decided later after you make sure the rest of your car can handle the new found power. Your on the right track spending money on brakes and suspension. Converting to the 05-06 brake setup is an inexpensive way to upgrade an 04.Dang man, the way you guys keep putting it i really only need fuel system, turbos and turbo accessories and a tune.
I'm probably going to take it one step at a time, install turbos and fuel system and tune it, definitely going to add a 4 corner steam vent and relocate the battery to the trunk and street tune it, that way I can use the saved money to upgrade the brakes, the driveshaft, and the suspension and get the actual car up to par, then ill go all out with the cam and have it dyno tuned.
While the cam may not be a necessity and a lot of people will tell you to ”just turn up the boost” instead. Unfortunately a stock shortblock and pump gas you can’t really do that so the cam will be a good way to get more power when you are octane limited.