Help with wiring and flooring

[billdc]

I have a Ski Brendella, but I've been told I might find some help here. I picked this boat up in the spring and the PO had left it uncovered for two or three years. I already own a bowrider that we use almost every weekend, so this boat will sit at a local river for weeknights and occasional short weekend trips. I have two 13yo that want to ski and board, so I might have this boat for 5-6yrs, and I might end up keeping it longer if everyone likes it. I am going to start the renovations on it soon and I think I have some questions for those who have gone before me.
I want to replace the floor and got some info on this
http://boatbuildercentral.com/products.php?cat=30 (nidacore)
http://fiberglasssupply.com/Product_Catalog/Core_Materials/core_materials.html (divinycell

Seems to be rot proof, but is it worth the extra money. I have a local supply of marine and ACX plywood that would be alot cheaper (materials and shipping), but I want to make sure I'm doing it right.

The PO also rewired the panel to support a stereo and amp, by disconnecting the bilge and blower and removing the switches. I was thinking of a panel that like this.
http://bluesea.com/category/105/27/productline/118

I'm sure I will be back with more questions because I don't even have the boat in the driveway yet, but I'm starting to put together a plan of attack. Thanks
Bill

[OUI]

I would go with the composite material. What ever route you take, make sure you take out the original foam. It's open cell foam, so it absorbs and holds water -- ultimately rotting anything it comes in contact with. Can't imaging why any boat manufacturer would use open cell foam on a boat. It's really is a bad idea -- they weren't thinking, and it's cost a lot of headaches for older boat owners.

[TitanTn]

Going with plywood, fiberglass and resin is a tried and true method that can be very strong, and weather proof if done right. Without knowing how your boat is constructed, the best thing I could recommend is to search this forum and read through all the rebuilds. See how that applies to your boat, needs, and budget.

[mr.jrc]

even the closed cell foam will absorb water over time ... the lesser evil when your boat is swamped (vs. sinking to the bottom).

[OUI]

I can't imagine how open cell foam would keep your boat from sinking, or any foam for that matter. Not enough flotation.