Hi La Safari 64,
Welcome to the forum, and the '64 Safari club! Well, not really a club, just some fellow owners. It's really easy to get to the faucet connections. You just lie on your back in the tub, with your feet sticking up in the air, and look at the bottom of the sink surround. (no, really. I mean it.) There's a hole under there for you to get to the pipes and fittings. Removing the sink is another matter altogether. I would have to go look at mine to refresh my memory.
It helps to have small arms and hands, and a flashlight on the end of your nose to be able to reach into the hole and still see what you are working on. And don't think you are going to actually SEE the fittings, you are still going to be working by braille to some extent.
I recommend having a small, young person with strong hands do this part for you.
Are you needing to remove the sink for another reason, or just to gain access to the faucets?
Take a look at my long out-dated blog for some familiar looking pictures.
Best to you,
Rich the Viking