Question LT3757 Flyback Bipolar Power supply

Hello Currently I am looking in to building a AC to DC High Voltage Bipolar Power supply with the LT3757 Flyback Regulator I would like to attain a maximum current of 100mA, at 500V+- is this possible with this topology

if so, is there a spreadsheet for a Bipolar Version?

what do I have to look out for?

sincerely yours

Bastiaan Pierik