You can become a Ranger Medic without a Ranger Contract. In fact, the vast majority of Ranger Medics were NOT on option 40 contracts.
Get an option 4 (Airborne Contract) and still get to the Regiment with no problems.
With an airborne contract, you can either submit application at AIT or you can volunteer once you get to Airborne school. Regardless, an airborne contract gets you to Ft Benning. With an airborne contract, you are locked into an ABN school seat and you will be on orders from Ft sam Houston to Ft Benning following AIT.
If you volunteer while at Ft Sam, you can normally only do so after week 6. If your education is what you say, then you can request a waiver through the Regiment Recruiter. The instructors can get you a packet or you can go to the Regiment website and download a "68W AIT application".
If you volunteer while at ABN school, you need to do it in the 1st week. The Ranger Recruiter is in the same building where you do ABN school in-processing.
Ranger Medic, 75th RGR Regt
1990-1995 at 1/75
1995 to 2012 at RHQ
2012 to 2015 at USSOCOM
2015 to Present CoTCCC/Joint Trauma System
if you can do the math and have been in the Regt medical team in those years, then you probably know who I am...
Dominatus Comminus Rememdium
"Mastery in Close Combat Medicine"