Hi Mick and welcome aboard. I look forward to seeing some of your
work. As far as simulating water, well, I'm a newby to all the
techniques that I have learned from being on this site and the other
ship modeling sites. Some modelers use acrylic gel, which is a
great medium, some use celluclay or plaster to build up the base and
acrylic gel to accent the shape of the water, and some use clear
sillicone sealant for large projects. Jeff Hearn and Rusty White
have some nice articles about these techniques.
There is also the old clear resin appoach, where the model is partly or fully submerged in resin to look like it is under water.
Please search around here at FSM, and also at Model Warships and Steel
Navy, where there are a lot of fine examples of these techniques.
Scott