We have direct marketed grain and grass finished beef in the past, but are going to strictly grass finished now. The whole key to direct marketing is the marketing, plain and simple. In order to market something, you have to believe in it. To believe in it, you have to be satisfied with how you've produced it. If you're satisfied with your product you can confidently price it, market it, and sell it to anyone.
You can try restaurants of course, but finding the one that will want more than just striploins can be a challenge. Our best market has just been the everyday Joe and Jane, creating a relationship of trust through honesty and communication, which is key with everyone involved in direct marketing. Get to know your butcher, and have them get to know what you're doing or wanting of them. It'll pay big in the long run. We sell halves or do custom orders of 50lbs or more, for those people who don't have the freezer space. We set a flat price for orders by the half, but if someone wants specific cuts, everything is priced individually. We make substantially more money/carcass that way, so we don't mind the extra work involved, and deliver most all of our sales. We don't do any fancy labelling yet, although we are working on it for certain products to go to certain customers, like jerky and sausages.
Feel free to ask questions or pm me. There's lots of others on here doing various types of direct marketing also.