Best genuine ford cross steer for model A?

[28fordroadster]

Model A frame, roadster cowl, 8BA mounted far enough forward to mount 29 cowl without cutting the firewall. Two choices of cheepo headers. I'm going to mount the radiator 1.5" forward to clear the truck fan. I have a dropped main spring on a 33-36 axle. I have 42-48 square back spindles.
What are my choices for cross steer steering boxes that are stock ford?
I am considering cross steer because of the dwindling availability of the F-1 box
Thanks for your help