I-75 to Florida's Turnpike (eastbound).
Get off Turnpike at Toll 429 (Western Beltway) heading south towards Tampa; may be a Disney sign.
Little ways down 429 I think you need to go down what looks like an exit ramp to pay the toll using cash.
Get off 429 at Hartzog Rd/Flamingo Crossing (Western Way), there is a Disney sign, head east through welcoming arch (the "back" way).
Watch your speed.
At end is Buena Vista Drive, take right (southwest).
Right (west) onto Osceola Parkway, bear left past Animal Kingdom entrance, straight through Sherberth Rd. light.
Takes you directly into Animal Kingdom Lodge area where Osceola Parkway dead ends.
(I'm not sure exactly how far in is Kidani,.