Found this oneBelieve it or not brass floats were very common back in the day especially with Ford Chevy applications. Any auto parts store can get one. I found it quicker to grab one off Amazon
exactly.I bought a couple off of CJ pony. Ford mustang float
Found this one
Amazon.com: Acp - Fuel Sending Unit Float : Automotive
Buy Acp - Fuel Sending Unit Float: Fuel Sending - Amazon.com ✓ FREE DELIVERY possible on eligible purchaseswww.amazon.com