If you are not looking for a Futurity prospect, you need a connection in this part of the country. By now, most of the 3 year olds have been sorted out to 'serious futurity prospects' and 'flunk-outs', many from a great trainer's futurity program. The ones that have had a year of training and are just not coming along good enough usually sell in that price range. Many of them have had $10,000.00 to $15,000.00 of training and their serious owners are just trying to cut their losses.
You need access to their Vet. If the horse is sound and has not had multiple Vet problems, the trainer or owner should not mind you talking to them. It takes a release.
Some of these horses are really nice prospects for lower level reining. They will require a person working with a trainer. One of you, (the horse or the rider or the trainer) needs to know what they are doing and know the correct techniques for getting there. It is not a case where the blind can lead the blind and have a good outcome. Backyard trained reining horses are a disaster. A knowledgeable person has to be involved.