u/buzzard556

Hello this is my very first mini 14 so idk much about them anyway here are the only photos I have of mine for the time being (excluding the 3rd pic). How would I mount a rail on mine like the one in the third picture or something similar? Also I picked up a vortex uh-1 to throw on it but then shortly after I saw a video where a eotech was mounted on a mini and giving it ejection issues with it being in the way so does anyone have any experience with running the vortex? This is a 1989 model btw.