Hi I have a Smit Engeland, which I built using the Nederland hull and scratch buildingthe rest - one thing I did change was to fit a twin deck system. I fitted a deck as it should be, but cut out so that there was only about 1.5 inches of wood inboard of the hull sides, and with just one section left in going across the hull below the winch. I then made up a second deck to completely cover the first, but with an access hole under the wheelhouse. I then fitted the bulwarks and everything else to this upper deck. I have fitted 4BA bolts coming though the lower deck where all the sampson posts are ( three on the bow, one either side of wheelhouse and two on rear deck) and then made these posts of brass, threaded inside so they screw down and hold the two together ( with a spot of silicone grease between them). The wheelhouse lifts off to reveal an opening, inside which is a small removeble tray with all radio gear on except rudder servo ( motor ESC's, winch ESC, RX and Rx battery) which I can lift out of the way to get to the motor and winch batteries. Only time I need to seperate the two decks and get inside the rest of the hull is if I have any problems with the motors or the rudder servo - touch wood, not in 5 years - though I do open up now and again just to make sure they will still come apart ::)
Have fun
Aston