I think JerryHawk250 got one of these off Amazon and put it on his bike.
https://www.amazon.com/uxcell-a18010...s%2C260&sr=8-4
or maybe it was this one
https://www.amazon.com/Uxcell-a18011..._t3_B07BGX7T2M
The CSC sending Unit I put on my HAWK.
I second all the comments about attempting to fix the broken gas tank. A good thing about inexpensive China Bikes is there is not much to loose by trying ANY fix.