What is your primary deliverable? Seeing as a telecine was involved, I am going to assume film sources. I would be considering a DNxHD 444 in some form of “log” to get as much dynamic range of the negative to a 444 color space on digital video. Going to DNxHD 175, you have not restricted it to Rec.709 and 422 color space, albeit 10 bit (175x).
My recommendation for the workflow would be to DNxHD 444 and transcode from that to DNxHD36 for offline and editorial, then a relink to “highest resolution”. But it is certainly possible to edit at DNxHD 444 provided you have enough storage and if editing on MC7 can apply a Log to Rec.709 LUT to have dailies that look good but allowing you access to full dynamic range by removing the LUT.
Michael