Drop position on a Jquery Draggable and Droppable

Drop position on a Jquery Draggable and Droppable

Hello. I want to make a floor plan with a sidebar draggable elements into a container droppable.
Then, from that container where i drop elements from sidebar, i want to make them draggable again to arrange where i want in the container.

http://jsfiddle.net/96t0qwmg/2/

I`ve made an example here but it has some problems:

1) when i drag elements from sidebar, they not placed where i dropped in container. Need to position them exactly where i drag.

2) if i drag 2-3 links from sidebar to dropable, then trying to re arrange them (top - bottom) there is no way to place them to a same row. As it supposed to, as i have to draggable grid: [ 80, 80 ] option...

Where i`m wrong? Can someone help me with a quick fix?

Thanks!