Would I achieve this density from FUE? (photo)

The density that you target for the recipient area depends upon the donor supply. The density in your idea photo, is higher than 4000 FUE grafts can achieve. It is simple math, as 4000 grafts will give you about 9000 hairs and your balding area would have had more than 9000 hairs prior to losing it

According to the pictures of the donor area, the density on the crown will be less than the hairline and the mid-scalp.

You should know that the graft removed from the back cannot produce  hair on that zone as they remove them to the recipient area. 
The baldness area is larger than the donor area. if the surgeon will extract more than 3000 grafts for your case you will have a bald spots on the back and you cannot shave that short after the surgery.
You need to be aware about the result if they remove 3500-4000 grafts.
There is adifference between the density and covering the baldness.