If you managed to get the ford driveshaft with the rear end then all you have to do is take the ford driveshaft and the mopar driveshaft to the driveshaft man and tell him to make a new shaft with the mopar front end and the Ford back end. .
You may or may not be able to do this, depending on the size of the tubes. You need to pilot the yoke casting into the tube. On my old Landcruiser, years ago, I came up with some Bronceroid shafts which had bad CV joints. Cut those off and used the slip yoke end at the (Spicer) transfer case, and had some spacer rings made up to insert the smaller Landcruiser yokes from the old shafts into the Bronco tubes
