Ouch! You need all the hub to use the doughnut.
Can you get to the other side of the wall and connect to the pipe?
Can you get to the other side of the wall and connect to the pipe?
Suggested.. he went with this option.is that straight pipe or a fitting? if its pipe youll need to break that wall out so you can get a clean cut, then you can use a no hub coupling with a no hub adapter for your transition. cutting that pipe in a recessed wall can be tricky but not impossible. have done it many times, i use a high speed cutter with a metal cut off wheel. find a way to test seal on the coupling after joining can be a problem area if you end up with a blockage in that line. do not use a fernco what ever you do.