Hi! I have built some models. I think, I can help you, but I am sorry, I am not so perfect in English, I can't understand what do you really need.
Are you looking for evaluating board (some of kits) to make the controller? What do you want to control? Only one engine or whole model? Do you need to change the motor power or only switch it on and off? Are you able to build your own device (make layout, mount components, write a program for micro) or are you looking for ready one?
You can write direct to my email, I will try to help you.

PS
If I have understood you well, you should to take a look at VMOS transistors, not MOSFET.
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There is no stupid question. Only answer can be stupid. If you don't make mistakes, you probably never learn.