You know what they say Matt:
Act in haste....repent at leisure.
You have that 3dr looking sweet as & with the way things are going, the value is only going to increase & you wont find another one as good if you let it go, especially with all the effort you've put into it.
Plus, a scuba diving holiday is gone once you come back off it and will fade into the memory bank, all you'll have is a few photo's, where as that 3dr will be in your garage, something you can touch and is real.
If you want to change a car, sell the focus RS for a daily drive diesel.........