Welcome to the Team Rick!
I would rebuild your 454 as a 489 (a 496 that hasn't been bored all the way to 0.060" over allowing you one more rebuild in the future as these blocks are becoming scarcer now). I would use a n Ohio Crank or a SCAT rotating assembly with a cast crank to keep costs down. I would specify internal balance as it really adds to the longevity of the motor. Add a new stroker oil pan form Milidon with the pick-up already welded onto a Mellings high volume pump.
Since you are approaching the magic 500 cube displacement number I would also look into upgrading the heads to rectangular port HiPerf cast iron heads or a set of larger Roval aftermarket aluminum port heads (no one uses a rectangular port because of the dead air space in the corners, but they are stretching the round or oval port heads). This is especially true if you are currently using the "peanut port" factory heads found on a late model pick-up truck donor motor. Since Chevy hasn't put a big block in a car since 1973 ('74 if you consider the 600 or so Corvettes with a big block), all heads cast from 1974 up are the small "peanut port" heads that are no larger than the heads you would find on a 350 small block.
Car motors and teats are better when they are bigger. I personally only build bra busters.