So I am hauling my 84 H27 for bottom job. I have speed and depth thru hull transducers installed in vbirth (the displays are old west marine units and can't find much info on them and are not hooked up and I have no idea if they work). I have had leaks in the vbirth from either the transducers or the OLD plywood backing plates that were used to install the ducers (I think it is the plywood that is leaking). Anyhow, I am wondering if the hull is solid fiberglass or has a core material???? I am trying to get a good idea on what to expect as far as water damage when I remove. I am trying to get my finances in order for the bottom job, this particular job, and a few other things I need to do while it is out of the water. Which also brings me to another question. Any advice on must do's while boat is out of the water?????