Style is right. It all depends what you are targeting, and if you are futureproofing. Standard manley h beam rods are built to handle 1200hp @flywheel. This is with the arp 2000 bolts and to have an rpm of no more than 8000.
Billet mains - another one you wont need unless going serious power, over 1200whp. Instead using arp bolts with stock mains would suffice.
Pistons, i havnt looked into this on my build but every manufacturer gives a rating.
Flywheel damper - stock oem damper will work fine unless you are trying to rev up at a phenomenal rate, you will need to look at a different one if this is the case.
As far as money. You can do it on a budget, or you can go all out with that list that you have. If you want to chat about it, i will offer all my advise and learnings. Just send me a pm. Im always open to help anyone.