We're definitely not the police man, but we do preach Harm Reduction principles and there are certain lines that we can't really advise people to cross. Now, the initial issue is, you're only really desiring a recreational drug experience. I'm not knocking that, I desire them too, but there are not a lot of "push" factors leading you into the decision to ingest these drugs; you really just want to. If you were extremely sick from Opioid withdrawal, I would be a lot more sympathetic, but you need to really consider what your health is worth to you, as the Cold Water Extraction is such a facile process, that it's practically criminal to let someone kill themselves simply because their situation precludes them from doing it that instant.
Also, there's a very wide spectrum of toxic effects in between "perfectly fine" and "completely dead". Even if you survive and feel totally fine, that doesn't guarantee that no damage has been done to your liver. 250mg/kg of APAP is considered to be a toxic dose and can definitely kill, but dosages many times smaller than this can and do cause permanent damage to your hepatic system. If you drink Alcohol is will be drinking Alcohol simultaneously, the risk is greatly exacerbated.
I would 100%, absolutely refrain from anything over 4g APAP in a single sitting, but I don't even like recommending that dosage. It's a fairly toxic substance when people don't stick to the dosing guidelines. My paramount advice would be to consume less than 2g APAP total or to just wait until CWE can be completed successfully so you won't have to worry about anything.