Offset question for a Y33

Im looking at 19x9.5 r and 19x8.5 f for my y33 and i was wondering how low i can go offset wise before i need to roll?  Cus ill get a 5mm spacer after that and then roll.  lol

oh and im lowered on stechs and srs

you can go 8.5 and 9.5 +3 with stretch tires and no roll...

i think 19X10 -27 with max camber 245/35/19

235/30/19

better fit