Curio & relic; Can buy guns that are made before 1950 or something like that. (there is a list) The good thing is that you get the same discount that the FFL's get at the gun suppliers like Midway.
But you can not operate as a business. Likewise, with a FFL you must operate as a business. Oh, and if you are trying to get your FFL, you should probably learn how to find your own answers. There is a lot of rules and regs to follow, and chances are you won't always be able to jop onto INGO and get answers to all of life's problems.