madlowmazda
+1y
you answered all of your own questions for the most part, although it is hard to say exactly what to do without seeing the truck and how badly it is damaged.
Most people cut enough of the wheel wells so that their tires will clear. With a BD, depending on how big your wheels are, it maybe required to tub the cab a little bit.
You need to take a look at the motor mount. New ones can be made, just sounds like maybe the rubber mount broke. Take a look at it to be sure, If needed lift the engine up a little with a cherry picker and loosen the mount bolts to find out what has happened to it.
The bumper and body mount frame horns usually get cut off the frame and relocated lower with a BD. Try to reuse these if possible, it will make the body alignment and bumper fitment much easier. Might be able to cut the front frame off a boneyard truck to get what you need. Be sure those lower control arm strut rod bars are not damaged, it will mess with the alignment bad and cause a big pull. Again, it's hard to say what to do without seeing the truck.
Good luck to you!