Finally buying a car, found one on Criags list - Grand Rapids, MI?

1991 toyota camry cost is 1100 but the blue book value is 1700. It has some rust spots and 164,000 miles. test driving today and will see if a machinac can take a look at it whiles shes in GR. Front bumper has a dent. She states the brakes have been recently fixed and oil is changed regularly and will change before the final sale. comes with spare tire. and shes leaving GR in June 2- more weeks to buy
MY QUESTION IS WHATS THE FINAL THINGS I HAVE TO SIGN TO BECOME THE OWNER, I HAVE HEARD HORROR STORYS ABOUT SIGNING NON ACTUAL TITLES. if i do buy the car what then? no plates or insurance yet, so how will i get it home?

First of all... you could get a way newer and better car for $1100... and you have to have insurance on the car to drive it home... or you get a BIG ticket...