Re: Not sure if anybody has tried this??
Most people who enter this hobby have the same goal. I don't think its realistic. If you get hooked into the hobby, you will most likely seek out additional nitch gear. The 7wt you purchased will give you an opportunity at much of what you desire. Match it up with 20-30 lb backing and a 7wt line. Your then in business!
It sounds like you may be a fisherman coming over from another method, for an experiment in fly fishing. If so, what do you currently fish for the most, that you would like to peruse with the new fly rod?