You can make small batches, if you have a very accurate scale. 1-2 pounds in a good starting point, I would not go any lower than that though. If you are looking for recipes, millersoap.com is the best place. Pick one that has oils you can easily get. I can get lye at tractor supply company.
I would also read through the soap makers thread, a lot of your questions were discussed there.
I would also read through the soap makers thread, a lot of your questions were discussed there.