Things you need to know about this fridge.
make sure you are not hitting the thermo line when you drill from top. its the line that you see on the inside.
never drill a hole on the side,
there is a line that run across the top by the door probably 1 -2 inches from the front.
when you fit 2 corny, you need to deal with the light switch. its simple.
I cut a piece of cutting board to use as support on the inside. through bolted the tower. now i use the cutting board to mount my manifold.
my 20# tank sit outside, I had to drill a hole on the hump
for sure that you need to modify the door. just bunch of screws to change the panel.