Voice clone deceased family member

I am hoping to clone the voice of my dead father to make a speech at my brother’s wedding. Dad had been writing the speech when he died, but didn’t do any recordings of it.

With the wedding in a week or so, we had the idea to get his voice cloned but I’ve run into an issue.

I had signed up for resemble.ai, which allows you to clone a voice, but you need explicit audio consent. Obviously, that’s not going to be possible.

Are there any services (or redditors!) who can clone the voice of a deceased person with the consent of their family?

UPDATE Thank you all for your input. On further reflection, I think those of you saying it’s a bad idea (and why) are probably right and I won’t be doing this after all.