It's fair for perfect and I'm still not sure if IGT or RTA will be used as the main timing method. I'm leaning towards IGT for the individual stories. I did the run as a New Game run. Since knowing what isn't unlicked from a new game it's easier tell.
IGT Level times:
P1 - 02'50"68
P2 - 05'40"78
P3 - 04'22"86
P4 - 05'02"43
P5 - 04'33"10
P6 - 03'19"81
P7 - 03'32"90
P8 - 07'10"25
P9 - 07'04"43
P10 - 07'07"01
P11 - 07'56"91
P12 - 13'38"08
Result - 72'19"24 Or a 1:12:19.24 when converted.