Weld/braze a thin NPT nut on there just above or
below the barb hole and drill into the cavity. You
would not have to relocate the barb that way.
It might look a little ghetto though. If you have a
anno job on it, the welding will mess it up.
LP Imagine, Sidewinder, 240psi/
ZipKit Victor2, Microrock,Rocket,
Blue bolt,10`Freak,Halo,ND Clamping lowrise.