Linda, I compost everything in sight, but even so, I wouldn't touch anything with shavings in it unless it was very well-aged -- they take forever to compost. Sawdust from pellet bedding, on the other hand, makes a great clay buster.
If you want to attract gardeners, let it sit for a year and then call it "garden ready," "composted horse manure" or "well-rotted manure." Many gardeners would rather use the space for garden beds, and their compost/recycling areas are often too neat and tidy to even consider a manure pile. My SIL has every square inch of their Sellwood-area city lot packed with over 300 varieties of antique roses, several hundred varieties of clematis, and hundreds of other plants as well. She has no room to compost manure, so she pays retail for hers.
All the gardening books refer to "well-rotted manure," so make it so and call it what they want!
Manure is indeed black gold, but it's HORRIBLE to find the following year that that black gold was filled with weed seeds. My horses are on dry lot, so I only have hay and sunflowers to worry about. If your pastures/corrals are weed-free, SAY IT. That's huge! If you have lots of weeds, free is NOT a very good price...
Too bad you're not still up here -- I know some people who are putting in organic gardens for schools, and they come and pick it up by the truckfull -- my sister and I use all of ours, so I sent them off to another mini farm.
Look for gardening clubs, especially organic gardeners. Have some already bagged in clean, leak-proof bags or containers for those without trucks.
Otherwise you'll just have to start gardening!