OP,
You're at a bit of a crossroads here, between wisely realizing how much this is going to take or taking a shot in the dark at a shortcut. I just got started four years ago now, and it took three years before we were firing on all cylinders to the point that I'm confident every time we turn out on a bobcat or lion that we have a high chance to catch. That involved one old finished dog, four puppies that were just my best guess, and two middle-of-the-pack reclamation project dogs that turned out to be far sharper than the guys I bought them from thought they might be. Every one of them but the finished dog was far from guaranteed. But time in the field gave them a change to develop, and more importantly taught me what it takes to make dogs.
Everyone wants to have hounds and catch game, nobody wants to commit to the time and resources to make it happen themselves. The truth is that hounds aren't a hobby, they're an entire lifestyle. It's far more work and commitment than any other type of hunting. Part of that work is a lot of trial and error; at this point, that's what you are lacking. There needs to be a willingness to fail, which may include 1. buying a dog that isn't great 2. knowing when to move on from a dog 3. spending the time to figure out what works and what doesn't, and giving the dogs a chance to learn in the field.
Summarily, you need to go snag a couple dogs that are your best guess, and spend the time in the field HUNTING (not training) to learn what to do next. Walk out every track with them so that YOU learn what is going on. Not trying to put you down, but at this stage the weakest link is the houndsmen, and that's you. Your lack of experience and knowledge is holding up the show, not anything a dog is or isn't doing. It's time to pony up, buy some dogs, and go hunt. Three years from now you'll either be selling it all and cutting your losses, or catching game and having a blast. BRTreedogs is right, you'll want 5+ dogs for bear. I'd start on cats first, then build from there to be able to bear hunt in the future.
I do have two finished dogs for sale. One is an exclusive cat hound, but finished and catches bobcats and lion. The other is an average-ish dog that will do both bear and cats.