getting the motor safely on the ground is the first priority. if the car is not high enough to slide the motor out, it can be addressed later. i have lifted the car off the motor before. no big deal.
thinking about it. it is probably a decent idea to do it this way. no sense lowering the motor from WAAAAY up there, when you can land it, and lift the relatively light car by going a bit higher and higher one side at a time. once you do it, you will find the lowering part is the easy part. remembering to disconnect everything takes more