Depending on how much of a pain it was for you to do that run, I'd say take a shot at it and see if you can somehow slice off that last minute. Either way, even if you can't get it done, you have an absolutely amazing time on your hands!
Rather reassuringly that wasn't that hard to do. I think because of my experience single segmenting super I don't find it too hard to keep it together for the duration of a SS run, and because this game is simpler in almost every way imaginable helps on top of that. So yeah it easily replicatable. I think what's really helping my time is none of the bosses are giving me any grief, and in fact I set most of them up nicely for quick kills. Ruins 3 is my favourite place because I can trap the gammas, I especially can't wait to show you the last Gamma of that area