If that doesn't turn out for you, do you have a back up plan? I've got years of unsuccessful low sugar baking under my belt
so I got used to back up plans. I'm not sure if you are going for low cal or low sugar/carbs, but strawberries are in season right now - this could be a perfect time for strawberry shortcake. You can sweeten the berries with splenda if you need to, and put it on an angel food cake or shortbread (not sweet, and the consistency of a drop-biscuit) with some cream whipped up with a packet of splenda.
That may not even be the direction you are looking for, but I thought I'd throw it out there.