I don't have pics, but I have a set up very similar to yours; a RRC2X in a 1.5" payload section. The RRC2X does not have the battery holder on the circuit board. I have the battery holder taped onto the mounting plate.
I did find that there is NO room to spare. I had to make the mounting plate narrower where it goes into the coupler section of the payload bay, and even then, it won't go down there all the way for some reason [it should go down about an inch further; I can only figure that the screw eye or the terminal connections on the phono jack switch are eating up some room.
And according to the calculations for the static vent hole, my vent hole [for a payload section 1.5" in diameter and 8 inches long] had to be 1/80th of an inch. Another calculation I found yielded a hole less than 1/50th of an inch. So I drilled a hole 1/8 of an inch [its only functioning as an altimeter in this rocket anyway, so nothing critical will go wrong, other than an inaccurate peak altitude reading].