If your 318 is in good running condition....
Camshafts... lots of shelf cams out there. I'd fill out the cam form @ jonescams.com. Or call Bullet... UDHarold was a legend in the cam biz and many of his grinds went to Bullet after he passed. Then there's Charles @ Camcraftcams.com. ... another wise choice. Howard's can grind one, too. Hughes did a regrind for me that worked well.
You can go ultra low dollar and get a Jegs or Elgin cam. Remember there are some cam cores that better quality than others.
I'd keep the stock rockers just clean up what you have and replace what's worn.
Recurve your dizzy to be all in at 2500 rpms. I like Ford TFI coils (inexpensive) and I think one would work with your Mopar box. Not sure if you'd need a resistor.
Edelbrock intake and carb... usually spot on right out of the box. Holley's and their clones are great but need more tuning to get them right. On a mild deal you take the Edelbrock out of the box and bolt it on...done.
For this deal I'd use a good Cloyes or SA timing set. Headers are cool but are a pita to install and you won't gain much with a mild performance low buck deal. Keeping your stock exhaust makes this a very simple, and cheap, re-do.
Wyrmrider can tell you there were likely hundreds of thousands of backyard builds like this done by budding hot rodders for 50 years. Still are some going on. But the "might as well" movement moved everything from the $1,000 budget to the $5,000 budget build and way beyond. With the easy availability of "new" tech and instant gratification many of us are shamed into way overthinking and overspending even the simplist build.
You can do what you want... nothing wrong with that. But the "smile factor" will be plenty high if you put a lowly 318 together that just flat out runs great.
