"I was wondering if there was a stock ford column that I could use, maybe from an F150 (70's vintage)?"
That might be a bit more involved.....
You didn't say there was a prob. with the column.??
The new (used) upper shaft goes up the center of your existing column.
Yours is stick-shift/manual column. It's an easy swap if your column is good.
If you got a column., you would need it's shafts, & the "lower" shaft joint would have to fit your P/S box splines.
(Just the 2 shafts, I assume, would be cheaper)
"The power steering parts are actually from a 1976 Bronco. Does this make it a more difficult swap?"
No.... however the box-input shaft & splines may be a dif./larger size.
'76-'77 have a 4:1 ratio...the older ones are 6:1
This just means ya get full stroke turn with less turns with 4:1
At the end of the day., one doesn't know what he/she has 'til things are examined & measured...good to know B/4 buying any more parts.
We only have his word.....