That sounds like a lot of custom fabrication, but don't worry, it is possible.
Just don't think that it is a quick project. It's going to take you quite a while.
You also want to estimate costs first, before you begin and can't finish that project.
TAKE MEASUREMENTS OF THE MOTOR FIRST, AND CHECK FEASABILITY
1. Take the old motor & trany out of the mustang.
2. Put the new motor and
tranny on a hoist and hold it in in place inside the car.
- make sure there is enough room (clearance)
- try to place the motor as far back as possible (weight distribution)
- find out where you have to make sheet metal modification (probabely around the
tranny)
3. See how your
tranny and motormounts (from the Lincoln)need to be modified to fit in the mustang.
4. Weld the motor /
tranny mounts in place. (prob. custom
tranny mount / crossmember)
5. Cut of the brackets from the Lincoln rear suspension and tac-weld them in the same location on the mustang.
6. Take enough time, this is very important for the drivetrain geometry.
7. Place rear end into the car, and weld every thing in place.
8. Measure drive shaft length and shorten the DS
Now you're able to deal with all the small $hit around motor,
tranny rear end.
- custom exhaust.
- radiator
- electric supply for motor
- sensors motor
- A/C
- fuelpump (take the one from the lincoln)
-
tranny linkage
- e-brake cables
- brake lines (rear end)
You might want to think about keeping the stock mustangs rear end, just because it creates a lot less work.
I am pretty sure I forgot a couple of things in this list, but if you can do what I've mentionned, you won't have problems with the rest.
Have fun!
help engine swap to 460 
