return line for EFI conversion

I have no problem installing a return line. Inline Tube has complete stainless fuel line sets and I'm happy to buy a pair of them.

One thing I'm having a hard time sourcing is good fuel sender with a 3/8" outlet and a 5/16" return. It looks as if 1/4" return is the norm. Reading on Megasquirt forums 5/16" return lines are much preferred, especially since Inline Tube doesn't make 1/4" fuel line sets for early A bodies.

I do have a Walbro GSL395 pump as of today, which looks to be perfect. It's rated at 15psi, and the throttle body has a built-in pressure regulator at 13psi. Nice low pressure.

Does anyone know where to get a fuel sending unit with 3/8" out and 5/16" return?

Thanks,
Marcus