What are you looking for, specificly? Here is a link that will explain some things to you about fast ratio power steering and this link also has a link that will bring you to a manufacturer who makes the pitman and idler arm that you will need.
http://members.aol.com/pwall5/cars/steeringlink.html You can use a regular power steering unit if you cannot a rare T/A unit. The only difference between the two is the internal stops. Using the regular steering unit will allow you tires to rub against part of the frame, nothing major to worry about.
GOOD LUCK