yet another 318 build question........

Well a little money and not thinking led me to buying the intake I did..... It looked cool. Now I have a much better idea of what I am wanting. It does not have to look 100% stock, but at first glance I would like it to appear stock. Stock air cleaner, Mopar valve covers and either the 340 manifolds I have or a set of headers. Still debating that part. But the inside will be less stock. Also for the target hp of around 300ish hp do I need the better rods? I have no plans for ever trying for "max hp" and trying more for budget and reliability. So would arp bolts and polishing/balancing the stock ones be ok?