Hi,
I have a ZJ Fairlane (similar to XE Falcon) column in my 65 convertible.
Advantages are:
Headlight flasher on the column (and horn button)
Wiper controls on the column.
Length is good.
Column is collapsible
Rag joint bolts straight up to XY power steering box.
Disadvantages
Redoing the wiring for headlights, horn and wipers.
Mustang steering wheel doesn't fit, had to get a smaller diameter wheel and boss kit from Supercheap. (Darn!)
Need to fit XE lower column mount to floor.
Need to grind off mounting ears
I'm 6'5" tall so smaller wheel and long column make it easier to get in and out.
Hope that helps
Warwick:f