First things first...

First we will epoxy the hull panels full length to 16 feet.

The panels are puzzle jointed from a CNC machine. These will go together in the correct alignment, much easier than the unforgiving scarf joints of some other boats. Take the time to examine the pieces and choose the better looking grain side for the outside of the hull, this will place the better side down. Epoxy and the fiberglass tape will go on the inside of the joints. If you are short on work space, you can stack the pieces one atop another to save space. Just be sure to use plastic (I use cheap painters tarps) above and below each joint. You don't want to epoxy the boat parts to anything other than each other full length.

The epoxy will not stick to the plastic. If the parts are curling up and you cannot glue the joint flush on the first shot, even with a weight on top of it, better then to clamp the pieces and spot glue them together before using the epoxy and tape. If two pieces do not meet perfectly flush, the plywood is too thin to compensate by sanding very much, your error would likely show on the outside if you have to sand too much, so do take your time and do a nice job the first time around. This is a lesson I learned on one of my joints, as seen in the first picture. This excessive sanding on the exterior side in an attempt to compensate for a non-perfect seam will show in my final product down the road. What you see in the second picture is what you are striving for.