289 fuel pump rebuild Mercury Cougar

I am finally restoring a 1967 Cougar I bought 25+ years ago. I want to rebuild the fuel pump. It’s a 289. I have tried searching for a rebuild kit, and I find nothing. Can anyone help or lead me in the right direction to find a rebuild kit? Thanks.

What type fuel pump? Is it a 289-2V or 4V?

It’s either one, but I will call it a 4v. It’s for a 289.

I could be wrong and will be happy to be corrected but aren’t most of the stock fuel pumps crimped together?

I’m thinking you are not finding a rebuild kit because it’s just not done.