Does anyone have experience of fitting a Mustang II rack & pinion in a classic mustang?

What modifications are needed?
Can the old power steering pump be used or is it better to fit the pump from the Mustang II?
Comments on steering response, sloppyness, etc.?
Links, pictures, advice?
Thanks for any help!

What modifications are needed?
Can the old power steering pump be used or is it better to fit the pump from the Mustang II?
Comments on steering response, sloppyness, etc.?
Links, pictures, advice?
Thanks for any help!