We have a butcher that comes to the house and with an assistant takes about 2 hours per elk. They will grind and supply beef fat or suet. No fancy sausages you have to do that yourself. Excellent job.
Check at local meat shops to see if any of the butchers will process, CO Dept of Agriculture has a licensee list that may help. I don't think its hard to do yourself but the experience of a butcher makes it go fast. They cut pretty quick. You may also need a heavy duty meat grinder, like a hobart, and they are pricy. I've been looking on craig's list and auctions for a while to find a cheap one.