Great write up but the more I read this sounds like a good winter project! I got some parts above and beyond the kit to get. After all your feedback, I am gonna go with Holley Sniper set up and look to upgrade the fuel lines with an intank pump. Does anyone make a good aftermarket one for a 1972 charger?
not counting the EFI intake, which I sub'ed out during the summer because I don't have the ability to do such precise work or weld AL, my initial cutover to EFI took the odd night and weekend 1/2 day type commitment for 3-4 months to do. For what I did, I think a 2-3 day blitz would have it swapped and running if you had the time to devote to it.