69 to 70 remote mirror swap possible?

My cougar is a 69 with remote driver mirror. My base and housing are very badly pitted and ugly. I came across a deal on a 70 remote mirror in decent shape. I should have likely remembered the differences better before snapping it up.
What I am wondering is if it is possible, or anyone has done, a swap of the remote side (69 straight onto a 70 cable set that has the 90 deg control). So taking a full 70 mirror and cable set, and taking off the 90 deg control, and installing my straight 69 control. I’m not sure if this has been attempted, or if it is even possible. Not sure if differences in the mechanisms make the cables incompatible between the two? If anyone has any knowledge on the subject, I’d love to hear.