In response to the gearing question... As a general rule 3.78 would be about the highest ratio in a Columbia... In reality, a quick change rear end in a Columbia would be over-kill.
I have a pretty hot 59AB engine in my '36 coupe with 3.78 gearing in the rear end. The car cruises very nicely in the 65-70 mph range.. Small hills present no problem where-as larger hills require down shifts.
Rethinking the question I have come to the conclusion that the application would be very difficult,, if not impossible, because the Columbia unit attaches to the side of the stock ring gear. I would bet that the application shown in the picture is actually an empty quick change housings with a stock Ford ring gear inside of the case.
Of course nothing is impossible, somethings just take longer and cost more money.