welcome to the site. personally I would just drive and enjoy your stang. Less stuff to work on. I remember my first truck ,it was a 59 ford with no power steering,no power brakes and no power clutch, but I would not change a thing about it. you can change over but its a chore, unless you have the $$$ and friends to help out, you can do it.
To make it better you could see if it is lubed in all the joints, get a bigger sterring wheel.
Just remember you cant turn while you sit unless you have huge fore arms,I found its easier to start to turn wheel you moving.