I've not read anymore than the first page but I have to say it is a feeling I know all too well.
In the past I have been paid to find 3 horses for a disabled rider (over the course of about 6 years mind, not all at once).
The amount of people who have tried to sell me something totaly unsuitable is incredible. Including one pony described as slightly green that actualy scared me senseless (and I'm a very experianced rider) I actualy turned her into a wall to get her to stop and she tried to jump it!!