You will need to rebuild the engine, change pistons, if you go above 6psi boost.
Yes, many get the 2.3l factory turbo charged engines from older mustangs and other Ford cars.
Info here: DaveR's 2.3 Turbo Swap Page - The Ranger Station
They are of course scarcer now because of the limited years they were made, and that people have done what you want to do.
Mustang forums might be a good source for custom conversions, i.e. install forged pistons and oil feeds for turbo, and then piping for turbo and intercooler
Also read here: http://www.route66hotrodhigh.com/ForcedInduction.html
Superchargers are possible if you are going the custom build way(can't find a complete factory turbo 2.3l).
Superchargers give instant boost pressure no sudden changes, steady power curve.
They are easier to install and give better off the line performance than turbos, cost is about the same.
Car makers chose turbos because they are easier to install from scratch.
Turbos have delayed boost and can have sudden changes in power with wastegate opening