I'm assuming we're talking about the 1/35 scale kit, and not the 1/72 or 1/144 scale versions of the kit...<g>
I built the 1/35 scale kit as an RC model- it makes a nice running model. I used a couple of disassembled standard size servos for the power plant, and a 2 channel radio. The motor servos are wired together with a "Y" cable.
For battery power, I used a 2.1AHr NiMh flat pack mounted under the well deck floor. My attitude when doing plastic model converisons is to treat them as semi-disposable, so I just built the battery into the model if it is easier than doing a lot of modifications to make it removeable. I figure that my the time the battery wears out, the model will be worn out as well, with all the dings and breakages models encounter over the years.
I used a pair of small Raboesch brass props, and a homemade tube/shaft. In the USA, an outfit called "Northwest Shortline" makes these wonderful little universal joint sets. Intended for use in HO scale locomotives, these tough nylon joints are perfect for connecting servo motor shafts to homemade 1/16 inchdiameter prop shafts in smaller models.
The model runs great- there's a picture of it here, on our club website:
http://www.marinemodelers.org/military.htmHope this helps...