There's one big mistake with that cover:
The "PG" logo uses the "Rated PG for ... " text that didn't exist until the early nineties. The 1977 version would just be "PG" with no reasons why - the "Rated PG for ... " text is exclusive to the SE.
Other than that (and the implication that the true mono and six-track Dolby mixes aren't included), that's a pretty freakin' sweet "what-if" cover!