I really don't think at this stage in your plants life, it will experience shock. If you'll let the pot dry out: hold the base of the stalk firmly, and gently pull it out of it's current pot, and move it to it's new home in a 5 gal pot, all should go well.
Water it in the new pot and medium with a weak fertilizer solution, making sure you have no air pockets, and your final yield will be much improved.

In the photo below, as an experiment, I washed all of the soil from the root system, and re-potted the plant in coco. By adding the dry coco in as natural layers with the roots as I could, it was very happy in it's new home, and never skipped a beat. I simply flooded the coco with quarter strength botanicare organic solution, and hand watered twice daily until harvest.

If you'd like a more gratifying yield, I don't think you have anything to fear from re-potting...
B