Yeah, that's quite a bit.
I tried doing insanity and revabs a few years back...I was fresh out of offseason conditioning when I played softball in college and I could barely handle it. Got too close to overtraining and you will too.
My recommendation: Do a round of insanity and if you aren't satisfied with your tush after that THEN do Brazilian butt lift. But I do not advise doing both at the same time. People underestimate insanity, it's good shit and will be enough for you for now.