I am restoring Commander 131. Which has an outboard. The aft hatch has 2 vents and is in bad shape. I purchased an aft hatch on ebay. It is in great shape but does not have any vents in it. Is it necassary for me to cut holes in the hatch and install vents if I am using an outboard in the aft well

If vents are necassary any suggestions on how to install them.

Thanks

Jake