unless the factory tierod arms are a rusted mess, they can be lightly heated and bent outward using a rosebud torch head and a long piece of pipe.
have a sand pile ready with a space dug out that will fit the tierod arm. after being heated and bent, get it in the sand pile as quick as possible, cover it up, and let it cool naturally.
no strength will be lost. if needed, a small spacer can be added between the tierod arm and spindle to gain a little more bend [ackerman] if needed.
this applies to the later style factory tierod arms without the ball joint attached.
like the [easily fabbed] arms used on my "eternal '33 dodge humpback project", only using factory arms on a stock K member and bending them to get the ackerman needed, along with the correct height needed to keep the rack arms parallel with the arm attaching ends.