Sorry for your loss
Life is short, I moved on. I don't know him, didn't get to experience the last 30 years with him so might as well be dead.
I get you. Ive read your other posts about him not paying maintenance etc. I had a very similar situation.
My dad called me 4 days before his death indicating he has lung cancer and will be moving to CPT (closer to me and my sis) to rebuild our relationship and for treatment. I told him i am not interested, but kept the conversation going out of respect. 4 days later he passed and i will regret that phone conversation for the rest of my life. His then girlfriend recorded him calling us and showed it to us at the funeral. It broke my heart.
Hopefully my story might help you decide. I am an advocate for reconciliation.