A class is not needed and the time required isn't that much. If you could make a cake from scratch, you can make and coat an emulsion.Count me as one who would love to try it, but who doesn't have time to take a class or put enough time into it to really know what I'm doing.
Actually, it's a fine activity that you can do in stages. For example, precipitate and ripen. Stick in the refrigerator and walk away for a week. Wash, then refrigerate and walk away and so on. A work flow like that may or make not make a noticeable difference in the final product but you can work that way with just fine results. Most of the hardware supplies you need that you might not already have in your darkroom can be bought at any dollar store.