What steering box do I need?

Thanks Straightline. I've had it in my head that I need the 73 up linkage for over a decade. Steering geometry or something like that. Good thing I've got linkage for both styles. I guess I'm all set then. Just need new bushings and I can build my replacement k frame suspension engine combo and try dropping the car over it instead of dropping the engine in! I don't think I'll get the car on the road this year (never know) but I should be ready for spring time. I sure do envy people in warmer climates. Thanks again.