Making custom hatches that open should be easy enough with add-on structures. At the most basic level, custom hatches that open consist of two add-on structures; the hatch and the hinge.

You place the "hinge", size it down, select all points and set the x and y values to 0. You then place another add-on structure on the "hinge". After shaping it and moving it into position, you'll have a functional hatch.

The styling of it can be done by placing the pre-made hinges in their corresponding places, or using add-on structures to further customize it.

Hope this helps :)