There's an ABS pipe in my basement that is basically a dead leg with a cap on it. During heavy rains, the cap will drip a little bit. Here is a picture of the current situation, including my ugly drip catcher:
I would like to cut the pipe and add a new plug fitting, but it is basically surrounded by other pipes and vents, including a copper pipe that runs vertically behind it and is pressed up against it (can't be seen in this picture). It's practically in the ceiling, so it's extremely difficult to work up there. I've searched for specialty tools, even tried making one myself, but so far no success.
I've seen the rope cutting technique done on Youtube, and I was wondering if there is a power tool that uses this technique? An example of what I'm talking about:
Or perhaps some sort of handheld hot-wire cutting tool? (Since the rope technique cuts with the heat from friction, just heating a wire would skip the middle man...)
Thank you for reading and for any suggestions!

I would like to cut the pipe and add a new plug fitting, but it is basically surrounded by other pipes and vents, including a copper pipe that runs vertically behind it and is pressed up against it (can't be seen in this picture). It's practically in the ceiling, so it's extremely difficult to work up there. I've searched for specialty tools, even tried making one myself, but so far no success.
I've seen the rope cutting technique done on Youtube, and I was wondering if there is a power tool that uses this technique? An example of what I'm talking about:
Or perhaps some sort of handheld hot-wire cutting tool? (Since the rope technique cuts with the heat from friction, just heating a wire would skip the middle man...)
Thank you for reading and for any suggestions!