I'll think about it, but I don't think I could do this, at least not easily.
Baskets, etc. should be placed in a quite predictable manner. They are placed in front of you unless there is an object in the way. In that case, the code looks around you in a circular pattern for the best available spot to place the object.
The placement happens immediately, having a 'ghost placement' would add an additional step that I think a lot of players accustomed to the game would find tedious.
Anyways, I'll think about it. This is the first time something like this has been mentioned.
Thanks!