I'm not @Dood obviously, but I've done similar using a Zoom H4 - this means you don't need the mini-mixer because it's built into the H4. I used the built-in mikes for ambient, plugged an output from the bass into one socket and a monitor mix into the other socket, put the unit on a short boom mike so you can adjust levels, It works really well.
I also use the ZS10s, they really are amazing for the money and you can buy assorted rubber tips off the bay if the ones supplied don't fit your lugoles.