Canadair Argonaut/ North Star freighters

[The Avgasdinosaur]

Dear All,

C/n 160 G-ALHN was apparently "modified" after BOAC service prior
to delivery to Overseas Aviation by Marshalls at Cambridge to a
freighter config. Photos prove this did not include a freight
door, she flew for some time with Overseas and Flying Enterprise mainly
on IT passenger flights and the occasional freight run.
What was the nature of the modifications in early March 1960?

C/n 134 CF-TFJ was converted to freighter configuration during
service with Trans Canada Airlines what was the nature of the
conversion, did it include a freight door?

C/n 147 CF-TFU was converted to freighter configuration during
service with Trans Canada Airlines what was the nature of the
conversion, did it include a freight door? Photo evidence exists
of the starboard side showing the windows either blanked out or
painted over.
Did these two remain pressurised when flown as freighters?
It is possible that as many as 4 saw freighter service with Trans Canada
C/n126 TFB fleet 202
C/n134 TFJ fleet 210
C/n147 TFU fleet 221
C/n149 TFV fleet 222
Hope someone can help, Does anyone have port side rear photos of any of these
aircraft, please
Thanks for your time and trouble.
Be lucky
David
A.K.A. "The Avgasdinosaur"