Outer Limits 4x4 Board

I have a 1978 fj40 with a 307chevy in it and i want some powersteering. i am only 16 so i dont have a large budget but is there anything out there that is bolt on or very cheap 2 use. people told me about fj60 and converting it over and i would need someone to do it for me. can anyone help me.
Thnak you very much.