Re: How would I go about starting up...
As above I would look specifically for an equestrian property that already has stables and grazing. Then you have to decide whether you'll grow your own hay/haylage or buy it in. You'll need to source shavings or straw as well. The other issue is whether there is already a manege, barns etc, as some counties can be funny about planning permission. Ours wanted a sample of the surface we were going to use and a sample of the post and rail! They wouldn't let us put floodlights up as they said it would interfere with the road, which is a load of tosh.
After that, it's really up to you who you take as clients and what their requirements are. The one thing I would say is to go for as much grazing as you can get. It's ok to say now that you don't mind it being small, but everyone who has contacted us has wanted individual grazing, which has been a pain. You'll probably want to rotate your grazing at some point. The other big thing is storage, as rugs, feed bins etc take up a lot of space and a lockable tack room. I would contact the BHS as they do books on how to run a livery yard as a business etc.
If you are good at what you do, advertising in your local tack shops should soon bring in business, a friend of mine is a private instructor who will ride your horse first, then teach you, but she also takes in horses for breaking/training etc, and she is inundated with requests.
Good luck, and let us know how you get on.