Mini-Tournament "For Sale"

Wouldn't it be possible to share the current record (i.e., the minimum number of days it took to complete the map)?

You can spend hours pondering how to improve your result by a day, only to find out that you're a week behind the leaders. But the map is amazing! I've been struggling with it for a week now, and each time I find new opportunities for progress. And I'm amazed at how everything is thought out down to the smallest detail.
Dirty_Player, how long did it take to create such a puzzle?