YET ..... ;0
I have got a few of these as you know from my recent visit to NZ and they have to be seen to be believed, nothing that touches the plate has any hope of survival for even a short amount of time, they are lethal traps.
The issue of the tunnel would be overcome quite simply by producung the tunnel here to fit the trap - but as I told you, without a tunnel they are unusable pretty much
OTC