Honestly, sounds like a clusterfuck. Do you have any good reasons to believe this could actually kill you? I'm not saying you won't die if you take all of that... but I'm betting you're just going to suffer a bunch of terrible symptoms and wake up regretting it.
To answer your first question yes I do. Google "Propranolol Overdose Deaths" and you will see a lot of examples of people dying from this. Also go on Google Scholar and type in "Propranolol Overdose Deaths" and there are a lot of examples of people dying from actual cases in emergency rooms.
To answer your second question about the suffering I only know of one case personally from someone who told me that after taking it they fell asleep and didn't feel any pain BUT woke up because they didn't take enough so they survived, they felt hungover when they woke up though and threw up a bit.
I am assuming this person is no longer with us since he told me he was going to try again with way more Propranolol and if I didn't hear from him again it worked.
Also there is a thread on here about Propranolol and in that thread there is someone talking about knowing people who ctb with it.
I need to have this amount because they are not barbiturates or opioids so way more is needed to actually ctb.
Also in another thread on here about overdoses you need the following to make an overdose work:
Something to help you sleep and relax which I have in the benzos
The actual drug that is going to make you ctb which I have
An antiemetic to make sure you don't throw any of this up which I have
So as you can see I put a lot of research and thought into this
The only thing I am worried about is the discomfort and pain during so I know in a previous response on this thread someone said I don't need anything else to potentiate it but I am strongly considering trying to get some verapamil to speed up the effects of the Propranolol so I fall asleep quicker and hopefully do so before feeling any pain and discomfort. Also I just saw a new case on google scholar where someone didn't survive after taking a combo of verapamil and Propranolol.
You like pain and discomfort huh?
Hope it doesn't hurts...
Please see my reply to Eddie Allen Poe on this thread.