A a good handheld tuner should be the first mod that everything else is built on. I would reccomend the trinity. There is a lot of good info here in the tuning section. Once you figure out how to log data you could install an email tune for the heads and cam. Then make some minor adjustments by email.
I have been looking for a dyno shop in az for mopars and havent found any yet...if you do please let us know. I am thinking of going a similar route with heads and cams...might just have to settle for a custom tune through one of the tuners listed on here