Years later...here's an update.
Sold more toys to up the budget. Went all-in on Holley parts to do the swap thanks to a suggestion on a Holley dealer (Rich EFI?) from a member here. Holley's response to my original request for information was absolutely useless but Richard's (I gotta look later and make sure I'm getting the right name) advice was invaluable.
In the mean time I also fell into a deal on a lower mileage 6.1 in a 300 SRT8 than the Charger has.
Donor car goes into shop Monday and we went to MT and pulled the Barraucda out of it's 3+ year slumber yesterday.
Things are finally moving along.
More update when I have more time.