How to get a solid team of dogs without paying an arm and a leg

Question1: many people start their dog in a pen with a hog to make sure the dog has interest. Some believe that a pen will ruin a dog n only do mock hunts n drags for their dog. I think both are a fine way to start your dog.
Question2: Every breed of dog has been tried on hog. Some like certain breeds vs other breeds so i will say NO to your question on a cheaper overlooked dog. If you can think of it someone has tried it.
Question3: Im sure someone has made a dog out of a pound pup if he spends the amount of time some of us spend with our pups.
Question4: Its all up to you how much you wanna invest in this sport. It is expensive as heck though. If you wanna try a high bred dog for x amount of $ then go for it brother.