[REQ] Extra Utilities 2 Water Mill placement

I'm trying to make a spell to place blocks in this shape;

https://i.imgur.com/uUHCgt8.png

It's a 3x3 hole, 2 deep. The center bottom block is the water mill with a conjured light on top. Around the conjured light are 4 blocks.

Placing the water is pretty easy manually so I don't have to worry about that, but if anyone could give me any pointers about what kind of spell this would be that'd be awesome