Tiny affordable multi mod...You're obviously setting yourself up for somekind of compromise
As far as the Bitquest goes...I'm gonna have to go against the grain here. The fuzz is surprisingly useable, but you mainly want a BQ for the bitcrush/filter/pitch stuff. Nice bonus if you're into the other modulation settings, but if you're expecting a deep swooshing phase 90 kinda effect out of it as well as a tweakable flanger and a warm chorus...You'll probably want to keep looking for something else.
Also, if you're replacing both the phaser and the behringer, and cram everything together...There should easily be enough room to squeeze in the ehx Mod 11 or Zoom CDR70, no?
Or keep the phaser, and replace the behringer with a Digitech Nautila? Compared to high end seperate flange and phase pedals there's nothing overwhelming about the Nautila, but it covers the bases of both effects, and it's cheap and stereo. Also less of a pain to dial in than an actual digital multi pedal like the Zoom. No presets though.