Power Steering on my 65

[MikeF48]

I just purchased a 65 mustang coupe and I have a question about upgrading the steering. The car originally had a 6 cylinder with a manual transmission, steering, and brakes. My plan is to make the car a daily driver for my 17 year old daughter. On a local classified board I found a power steering setup from a 66 mustang that had a 289 (it was $125.00). My question is will this PS unit fit in my 6 cylinder car? If it will not bolt in how much do I need to change to add power steering? I do plan on rebuilding it prior to installation but it’s been more than 20 years since my last mustang I’m looking for some advice from people more knowledgeable than my self. Thanks in advance.