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The "extended edition" is actually the U.S. theatrical version. It was cut on the original release in the UK. The regular Warner Brothers release of the Shining has everything you want. Amazon
The "regular" US version of The Shining is 144 minutes.
If you're looking for the cut with the extra 2 minutes at the end (146 total), to the best of my knowledge I don't think that's been released.
When released theatrically in the United States, the film ran approx. 146 minutes. Three days after the release of the film, Stanley Kubrick and Warner Bros. ordered all projectionists to cut about 2 minutes from the end of the film, and send the footage back to the studio. Starting after the closeup of frozen Jack, the camera goes to a pullback shot with part of a state trooper's car and the legs of troopers walking around in the foreground. We then cut to the hotel manager Stuart Ullman (Barry Nelson) walking down a hospital hallway to the nurse's station to inquire about Danny and Wendy. He's told they're both doing well and proceeds to Wendy's room. After some gentle conversation, he tells Wendy that searchers have been unable to locate any evidence of the apparitions she saw. Additionally, Jack's body cannot be located. We then cut to the camera silently roaming the halls of the Overlook Hotel for about a minute until it comes up to the wall with the photographs, where it [back to the ending as it is now known] fades in on the photo of Jack in the 1921 picture.
Shawshank on Blu ray for $8. Green Mile on Blu ray for $11. The Shining Blu ray for $12.21
EDIT: All of these and similar movies go on sale on a weekly basis for ~$8 at various locations.