If you don't have a good set of jackstands tall enough to hold your car up off the floor so you can roll the trans out from underneath it then removing the motor and trans together is the only other way to get it out, correct
if you don't have big selection of sockets and flexible connectors getting the upper trans bolt out is a bear so maybe it would easier and better to pull the motor and trans and then work on separating them on the floor
Make sure and remove the converter to flex plate bolts before separating the trans and make sure and push the converter all the way back into the pump before unbolting the trans and sliding it off from the block
Mopar trans and converter are a real bear to reinstall properly, the converter has to drop down twice into the pump to be installed correctly, be patient and take your to make sure it is in all the way before bolting the trans to the block
I use a straight edge or a 24 inch carpenter square laid across the front of the bellhousing and a tape measure to make sure the converter mounting lug faces are at least 3/4 inch away from the straight edge bottom