I went searching some more on the Internet after making the post above. I found this in-tank fuel pump option from Aeromotive.
https://www.aeromotiveinc.com/produc...h-fuel-system/
It looks like it might work for my fuel tank application. Has anyone had any experience with one of these? If so, how'd it work for you. Any trouble with gas leaks around the top where it goes in the tank?