The transmission will be a 5-speed, single shifting between gears, the torque converter will lock up in every gear except 1st.
I wouldn't go to 3.08 gearing, 3.55 would be better, you could change the rear wheels to srw, then put wheel arch covers.
You do what you want, just my thoughts after working at a Ford dealer in parts and service for 26 years and counting...just my two cents, adjust for inflation, just my 1/2 cent