Any tips on pulling motor and trans together

Planning on pulling the stock 318 and 904 trans from my 74 Duster project tomorrow. I am planning on leaving the motor boltled to the trans and taking it out of the car as an assembly.
If anyone has time, please let me know if I am going to go about it the right way.
The radiator, intake and manifolds were not in the car when I bought it
  1. drain fluids
  2. remove starter
  3. remove driveshaft
  4. remove trans linkage and crossmember
  5. remove steering arm that crosses under rear of oil pan(what is this called?)
  6. remove bolts in each motor mount
  7. lift assembly out of car with hoist with care
After removal, what is the procedure to remove the trans and converter from the 318 block without damaging the trans? The trans is going to be rebuilt and have new flex plates installed to be used with the 360 that will go in the car when restored.

Also, what should I do with the 318 block? Scrap it or try to find someone who wants it to rebuild?

Any thoughts from you guys would be welcome

Happy New Year:wav: