Hi there folks firstly il introduce my myself. My name is Gary 30yrs old and I live in Orkney in the north of Scotland.I am a collector of 1/50 scale modern trucks and due to the increasing prices in die cast models I am turning more so for my love of model boats. My first choice in boats are modern trawlers, support vessels, tankers/freight boats etc etc.(most things cruising the north sea). I currently own a model of a Norwegian pelagic trawler and in the depths of making a hullmatic36 creel boat (which I'm desperate for photos of

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Back to the topic in hand I have always had a thing for the vospers and recently bought a tamiya 1/72 motorised kit. You have the choice of having it as a static model with 3 screws or a motorised version with a single screw running on an RE280 motor. I'm looking in to turning it in to a complete RC boat and wanting to stick 3 motors in it. Due to the size of the boat I have been looking at these
http://www.ebay.co.uk/itm/190847579068?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1438.l2649Can anybody advice me if these would be a suitable rpm power for the boat. It's due to size and weight of these ones make it ideal for the vosper but I'm wanting it to have a realistic speed not super fast that it's uncontrolable. Also if I was to run these at 6v can some one recommended a small light weight battery pack. This boat is designed to take 4 um2 (c sized) battery's so I'm wanting to keep weight to a minimum to give space to receiver servos and esc etc
I should state the approx size of kit is 400mm x100mm