You "can" move a 3000 to the new one but it will have the integrated receiver w/ SF1 already so a waste of time. 

The 4600 you showed in the picture is a one time deal just like your earlier stuff. Granted you can't take it out of the machine but you won't pay anything in the future years to keep using the auto steer or section control if you get that premium act. 

Go with what's in your pictures for the AMS stuff and you'll be happy