Filler neck for 70 roadrunner

I have a 70 roadrunner.After 38 years of corrosion the time has come to replace the fuel tank,lines,and sending unit.I have nice shiny new parts but before I put alot of effort into cleaning up the old nasty fuel filler neck does anyone know where to get a new or reproduction neck?I've already checked some of the bigger parts houses(year one,the paddock,etc.)but have come up empty.Any ideas?

69440 has one for sale in the b-body parts(71 under) section.I think its 80.00