Hi Tanked.
A word of caution. If you are going to buy discus, and spend alot of money, (I have spent over £240 for a pair, thats about $380 USD. There you got it out of me) . I find it best to buy fish that you can see. i.e. visit the hatchery (if it is close). I have travled upto 100 miles to find good fish. The cost of traveling is worth it.
You do not have to wait a year for a tank to mature, a few months will do. Discus are becoming more and more hardier. If these are you first discus. buy the more common colour varities. They are cheeper, and tend to be easier to breed.