How vivid of a memory do you have of the location? You obviously wont have any way to know if details have changed if you don't remember them in the first place. If you do remember the location with great detail then it is definitely possible for it to be exactly as you remember (and probably more, the brain seems to be great at filling in details). Difficulty in dreams is largely subjective. Some people might have a really hard time recreating locations while others do it with ease. I don't think that it would be any different than any other dream scene just because it was created from a memory, but that doesn't mean that the contents of the folder will be any less valuable or interesting to you.

As far as actually getting to the location I have several suggestions:
- Open a door expecting the desired location to be on the other side.
- Dream spin (just spin around in the dream) and imagine the location you want to be at.
- Have the desired location in your mind during the day or before bed. Think about how it will look, feel, etc. to be there.

Good Luck