69 Swinger 3/8 Sending Unit?

What sending unit has someone used after switching to 3/8 line? I want to keep the original look at the tank. Classic industries has a 3/8 with 1/4 return but not available without the return. Unless I missed something on their site? Spectra only has a 5/16 or 1/2 inch with no return. Any part numbers out there that someone has used?? Thanks