Yes, you can use your dies in either press. I currently have, and use both presses almost every day. I primarily use the Rockchucker to decap spent primers & to pull bullets with an RCBS bullet puller. The T-7 is used for all my re-sizing, forming, and bullet seating. I don't know how I got along reloading before I got my Redding T-7 press.
My own personal feelings are that a powder measure doesn't belong on the T-7, mount it somewhere else (bench).