I am not sure I get your question correctly. If you are asking me about the time you need to spend on RFI, for G325 it takes about half an hour to fill it. About the medical exam; If you have all the immunizations, in your first visit to the doctor a TB test is placed and your blood is drawn for AIDS and Syphilis, you should go back to the doc's office in 48 hours to have your TB test read and if the blood tests are back you can pick up the filled medical.
I wish I knew how long it takes after you send the RFI to get approved. Then I had a time table for my approval. Anybody has any ideas on this?