May want to rethink the stock shifter. I went with the stock setup to keep my sweet stock console and made my own rod, this works very well for cruising and I have no regrets in going AOD. However, after a year of use I really want a good aftermarket shifter with positive shift stops and reverse lockout. Having lots of power on tap leaves plenty of room for error when upshifting, all it takes is a small slip to give very bad results at worst and a 1-3 shift at best. It is manageable but if you beat the snot out of it (with a 408 stroker, I believe you fit this mold) there are other things to pay attention to than thinking "easy on the shifter". I will probably ditch the console and go with a real shifter when the aftermarket steering wheel and high back buckets come into play, I am really torn on altering the stock interior though.
in short you can make a rod with round stock, a tap and some rod ends.