Ok, assuming the 7/10 win ratio holds, it might be relatively safe to apply a 3-play capped martingale after each session. You could start your first session at one unit, bump to five if lose, ten if lose again ...ect. In this way the average bet would likely be 10x base needing a bank of about 1000x base to make about 1.5 units per spin, breaking down to about 60 hr on a live wheel.
I'm scared to use progression, this whole system is based on hot splits and a positive progression,(any other progression would ruin it) and it seems to work pretty good