I ride a Last Detail Horse, and he is a 16.2 4 year old paint :]
That sire is producing gorgeous horses.
He is gorgeous. His Confo is perfect.
The horse I ride his registered name is Last Mintue Detail and he is running for 15,000 GREEN right now and he is Hypp N/P or whatever is the one that has it but doesnt show symtoms. So I am sure you can get a lot for the young guy you have here.
I don't like how high his hocks are off the ground, and he seems a bit sickle hocked, but other than that, he is really a good looking horse. Not sure on the price, I guess it will depend on what the market is in your area...you might make more on a lease right now; atleast he would be used, and gain a show record, which would continue to up his value for when the market does go back up.
He's gorgeous! But pretty is as pretty does - you're only going to get how much people think he's worth. I would continue training him and show him to get his reputation up... people want horses that place well. ;)