I purchased a 2007 2825 Harbercraft Kingfisher a month ago and am outfitting her for the upcoming season. I ordered an EZ Anchor Winch and am planning on installing a third battery as a house battery. There is currently 2 31 series batteries (one for each engine) located under the rear bait box/cutting table. Any ideas on the size of battery for the house and for those of you with this boat, where did you mount your third battery. Photos and ideas of how you anchored the battery and box would be much appreciated also.