With the Philo I spend on the DL chest I can get my fill of accessories and the Vanya hat. That's why I think it's much more efficient. I fiddled with the spreadsheet.

With 900myth and 1320 philo for the cowl and 1+ I gain 27 points over current (notable is a loss of 25 SS and 5 pie but a gain of 32det)

For 825 myth and 1125 philo (and $ for the Vanya hat) for AF2 chest and 3 DL accs I gain 116 points. There's over 3x as much mind gained (37 vs 11) as the alternative and 38 pie. Though no det gain really.

It all adds up to a gain of 10 hp/s if I don't +1.