I think moving the stand would add a lot of human scent around the area, not mentioning noise, etc. If it were me I would go with door # 2. If he has scrapes in the area he will probably come back to them. They are creatures of habit and if there is not a lot of hunting pressure he will probably keep freshening his scrapes. I might even try adding some buck scent to the scrape to get him thinking there is a bit of competition.
I usually have stands at least 20' but we make our own which helps a bit.
Not saying its the answer, just my 2 cents ....
... door # 5 is to let me hunt in that stand, you know different scent, etc
Just trying to help you out with this tough decision and let you sleep better at night.