What is the "perfect" street/strip package......for the average Moparian

I don't think that there is a perfect street / package. If you build it for double duty chances are that your going to what big power for the track which in turn will make your car less street friendly. I don't know about your area but were I live there's no place to go racing anyway. It's hard to have your cake and eat it too. Myself, I'd probably build a engine that has great throttle response, good low to midrange torque.
550-600 hp is not really what I would call "big power" but it is the meat and potatoes of what you will find at the track on an average day and also when done correctly that same car drives around no different than most peoples daily drivers outside of some creature comforts.....I think the hang up with some is that you never had a car like that and in your mind you feel it can't be done.....well it does get done in many different combo's and it's a shame that more don't understand that and are really missing out on some great packages.