Add a gallon of honey to the 10 gallons, some nutrients your favorite red wine yeast like Pasteur Red and let it rip. You have 10 gallons now BUT, you are going to loose a lot of that to sediment. You can strain out some of the pulp thru a stainless steel strainer or a clean pair of leggs to get enough juice for your SG reading. I know your house smells wonderfull with all those strawberries now. You could also add sugar after you get your SG reading but the honey is much nicer and gives some extra body to your strawberry. If you dilute it you are going to dilute the flavors, much better to have an awesome strawberry mead or wine made with 100% juice than to do the 3 lb/gallon a lot of weak recipes call for.
You guys are just down the road from us, any orchards around you selling cider apples or old time antique apples?
WVMJ