I just cant believe how fragmented this hobby is. Every model shop Ive been to only has half of the things I need, everybody I've spoken to so far has different opinions and ideas, and I cant even get the right connecting plugs and sockets, I've got to make my own.
Sunny Bob, you will very lucky to get ALL your required kit from one source. That's why the model boat shows are so well attended as traders tend to specialise in a particular niche in the market and its easy to visit each trader on the day armed with your shopping list.
Most model shops are geared for aircraft and cars with usually a few bits and bobs for boats. Before everyone else jumps down my throat, there are a few exceptions to this rule and some of these shops have internet sites and deal mail order very effectively.
Have a look at traders directory on here for a few pointers. They are on here by recommendation.
I'm sure that they would be willing to answer your queries about their products should you have any.
FC