A Heritage house sounds beautiful!
I think you could do your wedding for $1500 if you use your friends and family. You can get wedding cake or cupcakes from your local grocery store. The prices are much better there, Linz also mentioned getting her flowers there and they are much more affordable there. Get a friend to take your pictures, maybe if you want, invest in a good camera you'll have for a long time and have a friend use that.
I think your wedding will be the best day of your life and very very beautiful!