Will the swap satisfy your motivations? Why are you doing the swap? There are many options depending on your motivations, from a 500+hp injected turbo 302 to a classic 500 to 1000hp 429/460/532 swap, and either is more of a 'drop-in'. What is motivating you?
Keep in-mind this is more of a technical swap than mechanical, where getting the engine and trans in is likely the quicker part. If you don't love electronic mysteries...

I can't tell you how many custom cars I've done that were disappointments for the owners, where 99% don't care what they did, 1% say
"that's cool" as they stroll past it in the show parking lot, and 0.01% are freaked and talk at you for an hour. Oops, forgot the 10% that grumble you have committed a mortal sin.
I have no issues for whatever you want to do. It's yours. But after so many years of doing stuff like this, I first ask
why, and put some thought if it will satisfy
your motivations, or if something else could do that better. 🤷‍♂️