Hey Carl we're dreaming here right?
Look at the cost to do a fully forged 396 with light enough components to spin it up to 6500-6700 and hydraulic rollers. Maybe a dual stage 150 + 100 on top of it. :o
Then we have the 346 LS6 with heads and cam. Should make power to 7000+. From what I've seen it would drop right in after some work on the mounts. Less weight too. Swap in an LS1 PCM tuned and set up for the 4L60E with a 4400 stall.
Where's the bang for the buck?