Good fucking luck with that. Seems like no one is scanlating this and raws are even more scarce.
Btw, Dark Horse doesn't flip BOTI. When they started this series ten years ago, Samura himself requested that they would cut and paste the panels rather than flip them. In some early volumes they still had to do some occasionaö flipping that resulted in weird fights and Manji's bad eye switching sides, but they got rid of that pretty fast. They still do the cut and paste thing even though they've been publishing other series unflipped for a long while now, I guess it would be weird to do the transition in the middle of the series.
tl;dr, BOTI is not flipped. Learn to read.