I seem too never buy horses close, and I am always having them shipped this way, and I'm in Canada.
I would want to be more firm with them about his age and training. You have been ground driving him along with many other things. Brag a little.
Now, that said, I have seen you list this horse for sale as
either a gelding
or a stallion. IMO, that is unfair; he should be gelded. Period.
I was in the same position a few years ago. Like you full of dreams and goals of breeding. Bought the best colt I could, my first from the USA. Champion bloodlines and I was extremely excited! With age, he truly didn't become what I had wanted; he was a foal that got a little coarser with age and he also didn't have "it". He was a doll and a sweetheart of a horse. He was also was only getting 3-6 placings in a halter class(This is not everything, but it DOES help to see how good your horses it under another's opinion.
) and IMO for my future stallion that is simply not what I was looking for. My parents were right peeved when I wanted to geld this pony, because he had been so expensive etc. but I did. I also lost many inquires but I felt that if he wasn't stallion material for me, I shouldn't pass the buck. He also had the biggest heart. I had him very very well trained in all sorts of things, tricks, obstacle, halter, ground driving, bathing, clipping, lunging... The list goes on and on. So I gelded him and sold him for a fraction of the cost that I had bought him for years earlier. I sold him to a special family with 4 youth wanting him to drive. It was hard to see my dreams fall this way, but it was the best thing for the horse. He needed youth, and as a show horse, he would have taken my current geldings place or else we would have kept him.
What I learned, is that I am not buying a stallion again for many many years. I'm going to enjoy showing and use an out side stallion for my breeding. After this year however, I'm leaving breeding all together! I could have bought a national champion several times already
I much rather just enjoy my horses I have. LOL
So after that book... I would say you should geld him asap. Before he is sold, before he leaves your property. Not everyone can pick out quality, and there are many like you that buy a stallion, realize it isn't what you'd use, and just offer it for sale. If I could, I'd geld about 80% of all the mini stallions. There are simply far too many, IMO.
And before you blame the breeder, this colt may just be something they would use as a stallion. Each person has their own opinion.