Engine rebuild choices

I'm bad about keeping up on stuff and i'm sorry about that. I found a good cam, a mopar purple shaft.

http://www.jegs.com/i/Mopar-Performance/312/P4452761AE/10002/-1?parentProductId=746961

And unfortunately, I found some pretty bad pitting in three of the cylinders, so i'm forced to bore it out. The good thing about it is that I can get some better pistons in the process.

http://www.ebay.com/itm/161830585424?_trksid=p2055119.m1438.l2649&ssPageName=STRK:MEBIDX:IT

I decided to go with a flat top to bring my compression up a bit, as I decided that, since an overbore is required, better airflow would be a good thing. Luckily, my dad has some nice 360 J heads in the basement he's letting me have, I just have to get the hardened valve seats done. At least I don't have to buy new valves, but this is going to cost about $300 more than I originally thought.