Looking to replace my hatch boards (1973 23' convertible) and looking for some imput. Is there a reason why there are three seperate boards? Can I just use the three to make a jig and make one big one? (Thinking there is a reason why they are this way, just can't figure out why). Also going to make one out of plexi so when I am in it for the weekend, I can have light come through. Any thoughts?