Bcryan, you want to grow your yeast with the type of sugars it is going to eat in the fermenter. Yeast equipment themselves with certain enzymes and tougher skins depending on what they are eating. Maltose is an easy sugar for the yeast to digest, so they will be stressed out if they are introduce to a complicated sugar environment. Its like wearing shorts and flip flops thinking you are going to the beach, then you are thrown in a cold environment, you are not prepared and you are going to suffer. Same thing applies with yeast.
Are you an extract brewer? If not you could just mash in some 2-row and boil that up, that will give you a lot of starter wort for your yeast to replicate in. If not you could just go with your original plan, that isn't that much DME you are missing. Or just make it with the amount of DME you have on hand. Up to you.