You're not going to find one specific place that had the best price on each individual item you're wanting to buy. Some places have better prices on certain parts while other places have better prices on other parts.
You're also not going to find a place that has a "kit" already put together that has every single exact spec piece you're looking to buy.
There are too many variations of parts and options for that.
You really do just have to know what you want to buy, and shop around.
having said that, places like asiatees have "kits" like all the aluminum upgrades in one package that you can buy, and it's a little cheaper than buying them all separately.
If you're wanting to upgrade everything, like you said, you'll be placing multiple orders at multiple places, otherwise you'll be over spending on some parts.